tag:blogger.com,1999:blog-59537992522582896412024-03-19T10:54:28.971+00:00 Myrddyn Phillips - Mapping MountainsMyrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.comBlogger3689125tag:blogger.com,1999:blog-5953799252258289641.post-62806703924534929402024-03-19T07:00:00.018+00:002024-03-19T08:28:42.137+00:00Mapping Mountains – Hill Reclassifications – Y Trichant – The 300m Hills of Wales<p class="MsoNormal" style="text-align: justify;"><br /></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Castell Craigyrwyddon (SN 844 366) – Sub-Trichant addition</span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been confirmation of an addition to the
list of <i>Y Trichant – The 300m Hills of
Wales</i>,<i> </i>with the summit height,
bwlch height and their locations, the drop and status of the hill derived from
<a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhm_8IJq8D3_gkwz0PEa8SvJyEPArdL7-Qt18bj_vOJEb-zPeGMtu5-cF59iTTzwIedKbFxHIKjjhCYiSsefQWecJUZmUIMYcTps86xDvNYcHjwMNuA3idbyB0A0Qt6J8wzXqj6LxGgSHLojBj5rO7DvWX1Ry9vYgjIrJIddfeUWQEP4cCiLtQbrK41ruk/s1245/Castell%20Craigyrwyddon%20(SN%20844%20366)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="703" data-original-width="1245" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhm_8IJq8D3_gkwz0PEa8SvJyEPArdL7-Qt18bj_vOJEb-zPeGMtu5-cF59iTTzwIedKbFxHIKjjhCYiSsefQWecJUZmUIMYcTps86xDvNYcHjwMNuA3idbyB0A0Qt6J8wzXqj6LxGgSHLojBj5rO7DvWX1Ry9vYgjIrJIddfeUWQEP4cCiLtQbrK41ruk/w640-h362/Castell%20Craigyrwyddon%20(SN%20844%20366)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Castell Craigyrwyddon (SN 844 366)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this addition
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop. </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The list is authored by Myrddyn Phillips with the
<a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13<sup>th</sup> May 2017</a>, and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains
publication of the list appearing on the 1<sup>st</sup> January 2022</a>.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgepNoLaGtF3BBwgNd9AJCfML2d6jdr4Y7fzhgFN4UyczF46krkIOvqJ25u_avtFcf8YEyymCdIAsQcWuOtm3fQf43f80ZwPkdqPd4mATSI-_GBSa76g9DkJvbG4CL_t48R2K1umf6AyxERuYYl0LW8FtmrFHWmnJkGMy231DVruL56m1C9slrewwuBkgo/s719/Y%20Trichant%20-%20Cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgepNoLaGtF3BBwgNd9AJCfML2d6jdr4Y7fzhgFN4UyczF46krkIOvqJ25u_avtFcf8YEyymCdIAsQcWuOtm3fQf43f80ZwPkdqPd4mATSI-_GBSa76g9DkJvbG4CL_t48R2K1umf6AyxERuYYl0LW8FtmrFHWmnJkGMy231DVruL56m1C9slrewwuBkgo/w291-h400/Y%20Trichant%20-%20Cover%20with%20border.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is listed by is Castell
Craigyrwyddon, and it is adjoined to the Mynydd Epynt group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central part of South
Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is
positioned with the A483 road to its west, the A40 road to its south-west and
minor roads to its south-east, and has the town of Llanymddfri (Llandovery)
towards the west south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i>Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed with 21m of drop, based on the 355m summit spot
height that appears on the contemporary Ordnance Survey 1:25,000 Explorer map
and the 334m bwlch spot height that appeared on the Ordnance Survey Vector Map
Local hosted on the Geograph website and which was entitled the Interactive
Coverage Map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBf23tXql8IHo9G8K7FD441u53QlP7sMhy8NQDtjuCmbeaz_i-gMItnhDI8sgPNe-UXtgcP3iXMzJRpnY-5t3NpBbkT61bs7YEe5gkrfTS0xJJZ-n0AZL4PdmVa0xetd2RkM4kpj534hpSmef49qpXSSpFOS1ZuhYfp6ld8-U7WUp785BIJe8LYj73yMc/s946/Castell%20Craigyrwyddon%20(SN%20844%20366)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="583" data-original-width="946" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBf23tXql8IHo9G8K7FD441u53QlP7sMhy8NQDtjuCmbeaz_i-gMItnhDI8sgPNe-UXtgcP3iXMzJRpnY-5t3NpBbkT61bs7YEe5gkrfTS0xJJZ-n0AZL4PdmVa0xetd2RkM4kpj534hpSmef49qpXSSpFOS1ZuhYfp6ld8-U7WUp785BIJe8LYj73yMc/w640-h394/Castell%20Craigyrwyddon%20(SN%20844%20366)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the confirmation of the addition of
this hill to Sub-Trichant status is due to LIDAR analysis, resulting in a 356.2m
summit height and a 333.6m bwlch height, with these values giving this hill 22.6m
of drop, which is sufficient for it to be classified as a Sub-Trichant.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group: Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name: Castell Craigyrwyddon</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 356.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference: SN 84417 36643 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 333.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 84395 36784 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 22.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p><span style="font-family: Georgia, "serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)</span> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-36711514053726488922024-03-18T07:00:00.013+00:002024-03-18T07:00:00.138+00:00Mapping Mountains – Summit Relocations – 200m Twmpau<p> </p><div align="center" class="MsoNormal" style="text-align: center;"><span style="font-family: "georgia" , "serif"; font-size: 14pt; line-height: 21.4667px;">200m Twmpau – Summit Relocations<o:p></o:p></span></div><div align="center" class="MsoNormal" style="text-align: center;"><span style="font-family: "georgia" , "serif"; font-size: 14pt; line-height: 21.4667px;"><br /></span></div><div class="MsoNormal" style="text-align: justify;"><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;">The<i> 200m Twmpau </i>(<b>t</b>hirty <b>w</b>elsh <b>m</b>etre <b>p</b>rominences <b>a</b>nd <b>u</b>pward)<i> </i>are the Welsh hills at or above 200m and below 300m in height that have a minimum drop of 30m. Accompanying the main P30 list is a sub list entitled the 200m Sub-Twmpau with the qualification to this sub category being all Welsh hills at or above 200m and below 300m in height with 20m or more and below 30m of drop.</span></div><div class="MsoNormal" style="text-align: justify;"><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span></div><div class="MsoNormal" style="text-align: justify;"><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;">The list is authored by Myrddyn Phillips and the posts that have appeared on Mapping Mountains detailing the summit relocations to the main P30 list and the sub list appear below presented chronologically in receding order.</span><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgi6VQv9hyphenhyphenBQnm7bys35WW_U30VKGi8AkV0OF1dUHle46x-GvQu3WVVPpLe0dHa1IgTTnUuQGII4xIoPecHpAjO2y1C8vaBTB2jtgbwuscBer-sdGZCesOOZqioQeEt0DQKy143Om9QoW0/s1600/200m+Twmpau+-+Summit+Relocations+-+Intro+photo+for+blog.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="494" data-original-width="800" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgi6VQv9hyphenhyphenBQnm7bys35WW_U30VKGi8AkV0OF1dUHle46x-GvQu3WVVPpLe0dHa1IgTTnUuQGII4xIoPecHpAjO2y1C8vaBTB2jtgbwuscBer-sdGZCesOOZqioQeEt0DQKy143Om9QoW0/s640/200m+Twmpau+-+Summit+Relocations+-+Intro+photo+for+blog.jpg" width="640" /></a></div><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span></div><div class="MsoNormal" style="text-align: justify;"><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span></div><div class="MsoNormal" style="text-align: justify;"><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span></div><div class="MsoNormal" style="text-align: justify;"><span style="font-family: "georgia" , "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span></div><div class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: "georgia" , serif; font-size: 18.6667px;"><br /></span><br /><div class="MsoNormal" style="margin-bottom: 0.0001pt;"><div class="MsoNormal" style="margin-bottom: 0.0001pt;"><div class="MsoNormal"><div class="MsoNormal"><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background-color: white; color: #cc0000; font-family: georgia, serif; font-size: 18.6667px;">Mapping Mountains - Summit Relocations - 200m Twmpau</span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Mynydd Bach Brechfa (SN 520 286) - 37th summit relocation</span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><a href="https://mappingmountains.blogspot.com/2024/03/mapping-mountains-significant-height.html">Significant Height Revisions post for Mynydd Bach Brechfa</a></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Significant Name Changes post for Mynydd Bach Brechfa</span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation to a hill that is listed in the <i style="mso-bidi-font-style: normal;">200m Twmpau</i>,<i style="mso-bidi-font-style: normal;"> </i>with the summit height, bwlch height and their locations, the drop and status of the hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;">detail produced by <a href="https://mappingmountains.blogspot.com/2020/04/lidar-analysis-joe-nuttall.html">Joe Nuttall</a> in his surface analysis programme, with subsequent <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by the DoBIH team and independently by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbpp4_x1JmF29Mk2GDrE0yuFXjFjtG1Ov8RE3WUb4T52IRRRzaeELW6Elkxx3yR7xSJwuViVHo0hJOZvTNyMDuLxLeN5kgmEvbatr7BrnI-nSEp7NcaW76WzW305V8EGID3WZlFVtDBUOq6N5rcUl6iiFvgYZowNm_8kNh7jUZ_vOHdj25N1wJ7yYa5Hs/s1245/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1245" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbpp4_x1JmF29Mk2GDrE0yuFXjFjtG1Ov8RE3WUb4T52IRRRzaeELW6Elkxx3yR7xSJwuViVHo0hJOZvTNyMDuLxLeN5kgmEvbatr7BrnI-nSEp7NcaW76WzW305V8EGID3WZlFVtDBUOq6N5rcUl6iiFvgYZowNm_8kNh7jUZ_vOHdj25N1wJ7yYa5Hs/w640-h360/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Mynydd Bach Brechfa (SN 520 286)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">200m Twmpau</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"> - Welsh hills at or above 200m and below 300m in height that have 30m minimum drop, with an accompanying sub list entitled the 200m Sub-Twmpau, with the criteria for this sub category being all Welsh hills at or above 200m and below 300m in height with 20m or more and below 30m of drop, with the word Twmpau being an acronym standing for <b style="mso-bidi-font-weight: normal;">t</b>hirty <b style="mso-bidi-font-weight: normal;">w</b>elsh <b style="mso-bidi-font-weight: normal;">m</b>etre <b style="mso-bidi-font-weight: normal;">p</b>rominences <b style="mso-bidi-font-weight: normal;">a</b>nd <b style="mso-bidi-font-weight: normal;">u</b>pward.</span><i style="background-color: transparent;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: red; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjUtoxi88bqUukPJjHNLsy9RVyQYRlWkny5GKK3ewJPaaABpFmxU3bOtKvvTSCNKYvPpwcJfuDewpsn2N8fseg9Yc0y8kTOkP_qW2W5eyqmeQIa-xwDFdMQ0UN8J_wIuA-HTc8hCKPums9C66sC4QfbLIHKRSbuAuqmPsegd21yjYZ-8YGk7l-sl2eP7k/s714/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="714" data-original-width="522" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjUtoxi88bqUukPJjHNLsy9RVyQYRlWkny5GKK3ewJPaaABpFmxU3bOtKvvTSCNKYvPpwcJfuDewpsn2N8fseg9Yc0y8kTOkP_qW2W5eyqmeQIa-xwDFdMQ0UN8J_wIuA-HTc8hCKPums9C66sC4QfbLIHKRSbuAuqmPsegd21yjYZ-8YGk7l-sl2eP7k/w293-h400/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" width="293" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">200m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Mynydd Bach Brechfa and this was derived from the Ordnance Survey series of Six-Inch maps, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">and it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the Mynydd Pencarreg group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the south-western part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the B4310 road to its north and west, and a minor road to its immediate south-east, and has the village of Brechfa towards the north north-east.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p style="text-align: left;"></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiusZ4eEL01x17t9YrlNC_M3PbrxJSS3g0hMNIfV-7kwY-ko21k7NvhfhI9w9WAlSs7PG1lhWBdZX3Mwkvmw9t9XqpqFIXIx53Q3mwbwDAy74LrCHidGSUCgt7DRnNIR-OHoROl-DXR_ddytF4kjNVypVZfT3GtrUl_uwRo2i61UAnDgEVF5w6ea1XJzo/s970/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2050000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="596" data-original-width="970" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiusZ4eEL01x17t9YrlNC_M3PbrxJSS3g0hMNIfV-7kwY-ko21k7NvhfhI9w9WAlSs7PG1lhWBdZX3Mwkvmw9t9XqpqFIXIx53Q3mwbwDAy74LrCHidGSUCgt7DRnNIR-OHoROl-DXR_ddytF4kjNVypVZfT3GtrUl_uwRo2i61UAnDgEVF5w6ea1XJzo/w640-h394/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2050000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:50,000 Landranger map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0200-0299.htm">200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was included in the main P30 category and listed with a 294m summit height, based on the spot height that appears on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map at SN 52029 28578.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p style="text-align: left;"></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUJDudQuIgpY3THypkXpN6bs23W0pzO7yPXC1a5fs1GpvnnIosfI5nArfQ0beAZkHcFTZFhxnsZ_a7Wgc-nMvMTSkZ2gpo2sqwxCDLwRtYtrpdfsDS-x_TLM8lSbs7rY_V8lFBvv3e8yVrpBZyLy1INAc3A1XS32KZw7xE0-QJ3r_ajxQwBFBslmwzE38/s1000/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="598" data-original-width="1000" height="382" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUJDudQuIgpY3THypkXpN6bs23W0pzO7yPXC1a5fs1GpvnnIosfI5nArfQ0beAZkHcFTZFhxnsZ_a7Wgc-nMvMTSkZ2gpo2sqwxCDLwRtYtrpdfsDS-x_TLM8lSbs7rY_V8lFBvv3e8yVrpBZyLy1INAc3A1XS32KZw7xE0-QJ3r_ajxQwBFBslmwzE38/w640-h382/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Since the original publication of the Welsh P30 lists on Geoff Crowder’s v-g.me website there have been a number of maps made available online. Some of these are historic such as the series of Six-Inch maps on the National Library of Scotland website. Whilst others were digitally updated such as the Ordnance Survey Vector Map Local that was hosted on the Geograph website and which was entitled the Interactive Coverage Map, whilst others are current and digitally updated such as the interactive mapping on the Magic Maps and WalkLakes websites.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">The details for this hill were re-assessed when the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map became available online.<span style="mso-spacerun: yes;"> </span>This mapping had many spot heights not on other publicly available Ordnance Survey maps and for this hill it had 5m contouring, with the uppermost contour being 295m, resulting in an estimated c 297m summit height based on interpolation and a summit relocation to SN 51818 28761.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed.<span style="mso-spacerun: yes;"> </span>The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiEnvTu94MOr2On-CMxODqnPtI4GUcT3QVZy0UZWLhreHC2mwDemNaRY82uc3dEknGQgMWbP_Sn7XMF6L2AsWzRcB13yLfRnu2trCtQfNEKotzQ1r6L9YW87Ot_JIrxJxO9E7fJqX051lpzoJEpKgm-ZhfaJGGt07pHdt0KySmyDEfgPa5m-EsHCfkaCI/s1242/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20summit%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1242" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiEnvTu94MOr2On-CMxODqnPtI4GUcT3QVZy0UZWLhreHC2mwDemNaRY82uc3dEknGQgMWbP_Sn7XMF6L2AsWzRcB13yLfRnu2trCtQfNEKotzQ1r6L9YW87Ot_JIrxJxO9E7fJqX051lpzoJEpKgm-ZhfaJGGt07pHdt0KySmyDEfgPa5m-EsHCfkaCI/w640-h360/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20summit%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption">LIDAR summit image of Mynydd Bach Brechfa (SN 520 286)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest natural ground on this hill as 296.1m positioned at SN 52039 28618, and this position in relation to the previously listed summit position comes </span><span style="background-color: transparent; font-size: 12pt;">within the parameters of the Summit Relocations used within this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">The term Summit Relocations applies when the high point of the hill is found to be positioned; in a different field, to a different feature such as in a conifer plantation,<span style="mso-spacerun: yes;"> </span>within a different map contour, to a different point where a number of potential summit positions are within close proximity, when natural ground or the natural and intact summit of a hill is confirmed compared to a higher point such as a raised field boundary or covered reservoir that is considered a relatively recent man-made construct, or a relocation of approximately 100 metres or more in distance from either the position of a map spot height or from where the summit of the hill was previously thought to exist.</span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt;">Therefore, the summit height produced by LIDAR analysis is 296.1m and this is positioned at SN 52039 28618, this position is not given a spot height on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map, and is approximately 220</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"> metres south-eastward from the previously listed summit position.</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the hill are:</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Pencarreg</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Mynydd Bach Brechfa</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>146<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>296.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference (New Position):<span style="mso-spacerun: yes;"> </span>SN 52039 28618 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>223.7m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid Reference:<span style="mso-spacerun: yes;"> </span>SN 51351 28147 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>72.3m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><span style="background-color: white; font-family: georgia, serif; font-size: 18.6667px;"><span style="background-color: transparent; font-family: Georgia, "serif"; font-size: 12pt;">Myrddyn Phillips (March 2024)</span></span></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><span style="background-color: white; color: #cc0000; font-family: georgia, serif; font-size: 18.6667px;"><br /></span></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><span style="background-color: white; color: #cc0000; font-family: georgia, serif; font-size: 18.6667px;"><br /></span></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background-color: white; color: #cc0000; font-family: georgia, serif; font-size: 18.6667px;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background-color: white; color: #cc0000; font-family: georgia, serif; font-size: 18.6667px;">Mapping Mountains - Summit Relocations - 200m Twmpau</span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Cae Cwar y Coed (SN 828 343) - 36th summit relocation</span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><a href="https://mappingmountains.blogspot.com/2022/02/mapping-mountains-significant-name_01679341693.html">Significant Name Changes post for Cae Cwar y Coed</a></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation to a hill that is listed in the <i>200m Twmpau</i>,<i> </i>with the summit height, bwlch height and their locations, the drop and status of the hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;"><a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEht8ZTOdiM287P3LPRCZ1rGjNDzXrGvhW8uOFwfkoZ1_7IVD5fLNEvuEFpZ5mF1LjKlUXDkbhRa3a2do2X-U5EOhlIIhXwwtsRx_vEqmfoK4au-aExHm5lwGaGdPrx_CIIuxa3JLerhcr1MDtLSSxcwwgS9eM4QoVvy37q0HSQHP6sbkU8uxavxDs0B7zQ/s1243/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20hill%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEht8ZTOdiM287P3LPRCZ1rGjNDzXrGvhW8uOFwfkoZ1_7IVD5fLNEvuEFpZ5mF1LjKlUXDkbhRa3a2do2X-U5EOhlIIhXwwtsRx_vEqmfoK4au-aExHm5lwGaGdPrx_CIIuxa3JLerhcr1MDtLSSxcwwgS9eM4QoVvy37q0HSQHP6sbkU8uxavxDs0B7zQ/w640-h360/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20hill%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Cae Cwar y Coed (SN 828 343)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">200m Twmpau</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"> - Welsh hills at or above 200m and below 300m in height that have 30m minimum drop, with an accompanying sub list entitled the 200m Sub-Twmpau, with the criteria for this sub category being all Welsh hills at or above 200m and below 300m in height with 20m or more and below 30m of drop, with the word Twmpau being an acronym standing for <b>t</b>hirty <b>w</b>elsh <b>m</b>etre <b>p</b>rominences <b>a</b>nd <b>u</b>pward.</span><i style="background-color: transparent;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjFgaoDMIEJ1TICyAo_r64UP1WDru_0RjItLeobl-ltyAk-XQCNa1QOaX1IW7wXpEkUxjmoPkS0HmG8nlt6erW8G63lnQVJEEmSVmMmbfTbCPhoU-FzUwn_9fmhcEcb8SYzAB0KGwdsP-nNAyAuNwd2Z0mlY9b4asKIycrUEXWjNgH7aDo0Fylot3LNL0/s714/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="714" data-original-width="522" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjFgaoDMIEJ1TICyAo_r64UP1WDru_0RjItLeobl-ltyAk-XQCNa1QOaX1IW7wXpEkUxjmoPkS0HmG8nlt6erW8G63lnQVJEEmSVmMmbfTbCPhoU-FzUwn_9fmhcEcb8SYzAB0KGwdsP-nNAyAuNwd2Z0mlY9b4asKIycrUEXWjNgH7aDo0Fylot3LNL0/w293-h400/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" width="293" /></a></td></tr><tr><td class="tr-caption">200m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Cae Cwar y Coed and this was derived from the Tithe map, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">and it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the Mynydd Epynt group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with minor roads to its north-west and east, and the A40 road to its south, and has the town of Llanymddyfri (Llandovery) towards the west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0200-0299.htm">200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was included in the main P30 list with a 248m summit height, based on the spot height that appears on the contemporary Ordnance Survey 1:25,000 Explorer map at SN 82773 34291. This position was subsequently changed to SN 82761 34285, based on on-site visits and GPS data recorded on the Hill Bagging website.</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVEjnJXAhcOnRti2ikSDVj1oRRtntcTFYp06awBpQ_orMj67AG0Tbj78G_nnS6lzzK_D13OC7-iQ8jeRbDwhyhpe83yoX_tNr0-ccxtsblGlE4Czn4MIC9PvA824DEXPG9xR0kWDkEHYsidC7Po517i4eOMOJLcuhaK-0726e_VKsjYc0aOpuXwuBPwQU/s1062/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="587" data-original-width="1062" height="354" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVEjnJXAhcOnRti2ikSDVj1oRRtntcTFYp06awBpQ_orMj67AG0Tbj78G_nnS6lzzK_D13OC7-iQ8jeRbDwhyhpe83yoX_tNr0-ccxtsblGlE4Czn4MIC9PvA824DEXPG9xR0kWDkEHYsidC7Po517i4eOMOJLcuhaK-0726e_VKsjYc0aOpuXwuBPwQU/w640-h354/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging) technique produced highly accurate height data that is now freely available for much of England and Wales.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p style="text-align: left;"></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvP1TFySd2WkNAXYRjEs3RraClDViHRvywV_yKzBcNMLOoeLTNo8NIJk7XsES1cVComMz7V0k03rXMTvfM2jtSX-Jph1zSB6xFN8g3wov80zLzPJ9MRI_LLv_2TWdq-lmjDw81fiVAZznSvZkAJmAnMbk2NoZK2NgPpPC8-VyfqYhPMHqR1-yDl7rw3_0/s1243/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20summit%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvP1TFySd2WkNAXYRjEs3RraClDViHRvywV_yKzBcNMLOoeLTNo8NIJk7XsES1cVComMz7V0k03rXMTvfM2jtSX-Jph1zSB6xFN8g3wov80zLzPJ9MRI_LLv_2TWdq-lmjDw81fiVAZznSvZkAJmAnMbk2NoZK2NgPpPC8-VyfqYhPMHqR1-yDl7rw3_0/w640-h360/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20summit%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Cae Cwar y Coed (SN 828 343)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: left;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest ground on this hill as 246.6m positioned at SN 82809 34336, and this position in relation to the previously listed summit position comes </span><span style="background-color: transparent; font-size: 12pt;">within the parameters of the Summit Relocations used within this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">The term Summit Relocations applies when the high point of the hill is found to be positioned; in a different field, to a different feature such as in a conifer plantation, within a different map contour, to a different point where a number of potential summit positions are within close proximity, when natural ground or the natural and intact summit of a hill is confirmed compared to a higher point such as a raised field boundary or covered reservoir that is considered a relatively recent man-made construct, or a relocation of approximately 100 metres or more in distance from either the position of a map spot height or from where the summit of the hill was previously thought to exist.</span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt;">Therefore, the summit height produced by LIDAR analysis is 246.6m and this is positioned at SN 82809 34336, this position is not given a spot height on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map, and is approximately 50</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"> metres north-eastward from the previously listed summit position and importantly it is also positioned in a different field.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group: Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name: Cae Cwar y Coed</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 160<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 246.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference (New Position): SN 82809 34336 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 215.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid Reference: SN 83737 35272 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 31.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March 2024)<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><span style="color: red; font-size: 12pt;"> </span> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><br /></p></div></div></div></div></div>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-79471890791958676522024-03-17T07:00:00.023+00:002024-03-17T09:23:35.063+00:00Mapping Mountains – Summit Relocations – 200m Twmpau<p> </p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Mynydd Bach Brechfa (SN
520 286)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation to a hill that
is listed in the <i style="mso-bidi-font-style: normal;">200m Twmpau</i>,<i style="mso-bidi-font-style: normal;"> </i>with the summit height, bwlch height
and their locations, the drop and status of the hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;">detail produced by <a href="https://mappingmountains.blogspot.com/2020/04/lidar-analysis-joe-nuttall.html">Joe Nuttall</a> in his surface analysis programme, with subsequent <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis
conducted by the DoBIH team and independently by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbpp4_x1JmF29Mk2GDrE0yuFXjFjtG1Ov8RE3WUb4T52IRRRzaeELW6Elkxx3yR7xSJwuViVHo0hJOZvTNyMDuLxLeN5kgmEvbatr7BrnI-nSEp7NcaW76WzW305V8EGID3WZlFVtDBUOq6N5rcUl6iiFvgYZowNm_8kNh7jUZ_vOHdj25N1wJ7yYa5Hs/s1245/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1245" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbpp4_x1JmF29Mk2GDrE0yuFXjFjtG1Ov8RE3WUb4T52IRRRzaeELW6Elkxx3yR7xSJwuViVHo0hJOZvTNyMDuLxLeN5kgmEvbatr7BrnI-nSEp7NcaW76WzW305V8EGID3WZlFVtDBUOq6N5rcUl6iiFvgYZowNm_8kNh7jUZ_vOHdj25N1wJ7yYa5Hs/w640-h360/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Mynydd Bach Brechfa (SN 520 286)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit
relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">200m Twmpau</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;"> - Welsh hills at or above 200m and below 300m in height that have 30m
minimum drop, with an accompanying sub list entitled the 200m Sub-Twmpau, with
the criteria for this sub category being all Welsh hills at or above 200m and
below 300m in height with 20m or more and below 30m of drop, with the word
Twmpau being an acronym standing for <b style="mso-bidi-font-weight: normal;">t</b>hirty
<b style="mso-bidi-font-weight: normal;">w</b>elsh <b style="mso-bidi-font-weight: normal;">m</b>etre <b style="mso-bidi-font-weight: normal;">p</b>rominences <b style="mso-bidi-font-weight: normal;">a</b>nd <b style="mso-bidi-font-weight: normal;">u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: red; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjUtoxi88bqUukPJjHNLsy9RVyQYRlWkny5GKK3ewJPaaABpFmxU3bOtKvvTSCNKYvPpwcJfuDewpsn2N8fseg9Yc0y8kTOkP_qW2W5eyqmeQIa-xwDFdMQ0UN8J_wIuA-HTc8hCKPums9C66sC4QfbLIHKRSbuAuqmPsegd21yjYZ-8YGk7l-sl2eP7k/s714/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="714" data-original-width="522" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhjUtoxi88bqUukPJjHNLsy9RVyQYRlWkny5GKK3ewJPaaABpFmxU3bOtKvvTSCNKYvPpwcJfuDewpsn2N8fseg9Yc0y8kTOkP_qW2W5eyqmeQIa-xwDFdMQ0UN8J_wIuA-HTc8hCKPums9C66sC4QfbLIHKRSbuAuqmPsegd21yjYZ-8YGk7l-sl2eP7k/w293-h400/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" width="293" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">200m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Mynydd Bach
Brechfa and this was derived from the Ordnance Survey series of Six-Inch maps, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">and it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined
to the Mynydd Pencarreg group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the south-western part of South Wales (Region B,
Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the
B4310 road to its north and west, and a minor road to its immediate south-east,
and has the village of Brechfa towards the north north-east.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiusZ4eEL01x17t9YrlNC_M3PbrxJSS3g0hMNIfV-7kwY-ko21k7NvhfhI9w9WAlSs7PG1lhWBdZX3Mwkvmw9t9XqpqFIXIx53Q3mwbwDAy74LrCHidGSUCgt7DRnNIR-OHoROl-DXR_ddytF4kjNVypVZfT3GtrUl_uwRo2i61UAnDgEVF5w6ea1XJzo/s970/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2050000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="596" data-original-width="970" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiusZ4eEL01x17t9YrlNC_M3PbrxJSS3g0hMNIfV-7kwY-ko21k7NvhfhI9w9WAlSs7PG1lhWBdZX3Mwkvmw9t9XqpqFIXIx53Q3mwbwDAy74LrCHidGSUCgt7DRnNIR-OHoROl-DXR_ddytF4kjNVypVZfT3GtrUl_uwRo2i61UAnDgEVF5w6ea1XJzo/w640-h394/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2050000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:50,000 Landranger map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0200-0299.htm">200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was included
in the main P30 category and listed with a 294m summit height, based on the spot
height that appears on the contemporary Ordnance Survey 1:50,000 Landranger and
1:25,000 Explorer map at SN 52029 28578.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUJDudQuIgpY3THypkXpN6bs23W0pzO7yPXC1a5fs1GpvnnIosfI5nArfQ0beAZkHcFTZFhxnsZ_a7Wgc-nMvMTSkZ2gpo2sqwxCDLwRtYtrpdfsDS-x_TLM8lSbs7rY_V8lFBvv3e8yVrpBZyLy1INAc3A1XS32KZw7xE0-QJ3r_ajxQwBFBslmwzE38/s1000/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="598" data-original-width="1000" height="382" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUJDudQuIgpY3THypkXpN6bs23W0pzO7yPXC1a5fs1GpvnnIosfI5nArfQ0beAZkHcFTZFhxnsZ_a7Wgc-nMvMTSkZ2gpo2sqwxCDLwRtYtrpdfsDS-x_TLM8lSbs7rY_V8lFBvv3e8yVrpBZyLy1INAc3A1XS32KZw7xE0-QJ3r_ajxQwBFBslmwzE38/w640-h382/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Since the original publication of the Welsh P30
lists on Geoff Crowder’s v-g.me website there have been a number of maps made
available online. Some of these are
historic such as the series of Six-Inch maps on the National Library of
Scotland website. Whilst others were digitally
updated such as the Ordnance Survey Vector Map Local that was hosted on the
Geograph website and which was entitled the Interactive Coverage Map, whilst
others are current and digitally updated such as the interactive mapping on the
Magic Maps and WalkLakes websites.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The details for this hill were re-assessed when
the Ordnance Survey Vector Map Local hosted on the Geograph website and which
was entitled the Interactive Coverage Map became available online.<span style="mso-spacerun: yes;"> </span>This mapping had many spot heights not on
other publicly available Ordnance Survey maps and for this hill it had 5m
contouring, with the uppermost contour being 295m, resulting in an estimated c
297m summit height based on interpolation and a summit relocation to SN 51818
28761.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed.<span style="mso-spacerun: yes;"> </span>The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiEnvTu94MOr2On-CMxODqnPtI4GUcT3QVZy0UZWLhreHC2mwDemNaRY82uc3dEknGQgMWbP_Sn7XMF6L2AsWzRcB13yLfRnu2trCtQfNEKotzQ1r6L9YW87Ot_JIrxJxO9E7fJqX051lpzoJEpKgm-ZhfaJGGt07pHdt0KySmyDEfgPa5m-EsHCfkaCI/s1242/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20summit%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1242" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiEnvTu94MOr2On-CMxODqnPtI4GUcT3QVZy0UZWLhreHC2mwDemNaRY82uc3dEknGQgMWbP_Sn7XMF6L2AsWzRcB13yLfRnu2trCtQfNEKotzQ1r6L9YW87Ot_JIrxJxO9E7fJqX051lpzoJEpKgm-ZhfaJGGt07pHdt0KySmyDEfgPa5m-EsHCfkaCI/w640-h360/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20summit%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Mynydd Bach Brechfa (SN 520 286)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest natural ground on
this hill as 296.1m positioned at SN 52039 28618, and this position in relation
to the previously listed summit position comes </span><span style="background-color: transparent; font-size: 12pt;">within the parameters of the Summit
Relocations used within this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Summit Relocations applies when the high
point of the hill is found to be positioned; in a different field, to a
different feature such as in a conifer plantation,<span style="mso-spacerun: yes;"> </span>within a different map contour, to a different
point where a number of potential summit positions are within close proximity,
when natural ground or the natural and intact summit of a hill is confirmed
compared to a higher point such as a raised field boundary or covered reservoir
that is considered a relatively recent man-made construct, or a relocation of
approximately 100 metres or more in distance from either the position of a map
spot height or from where the summit of the hill was previously thought to
exist.</span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;">Therefore, the summit
height produced by LIDAR analysis is 296.1m and this is positioned at SN 52039
28618, this position is not given a spot height on the contemporary Ordnance
Survey 1:50,000 Landranger and 1:25,000 Explorer map, and is approximately 220</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> metres south-eastward from the previously listed
summit position.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Pencarreg</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Mynydd Bach Brechfa</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>296.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference
(New Position):<span style="mso-spacerun: yes;"> </span>SN 52039 28618 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>223.7m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 51351 28147 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>72.3m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-25686860366311496542024-03-16T07:00:00.027+00:002024-03-16T08:37:32.581+00:00Mapping Mountains – Significant Height Revisions – The Fours – The 400m Hills of England<p class="MsoNormal" style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;">Rippon Tor (SX 746 755)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 14pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Height Revision that
is retrospective to a hill that is listed in the <i>The Fours – The 400m Hills of England, </i>with the summit height, col
height and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a>
analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDo89_UZ-yP6odzFOUKZpoCOqgV1ggP8IR3WNELjCgW4qDHLMVa2vBZec6-wVpcMiIx4NTh9CjUtGKkNzFs818Oy6CUcfsjZ-TClFQF3EbQhyphenhyphenBtJZT06V2JzNaH9m3PfTldxwpwusS-_976a2N__INpIxF8y562h5PeGE34-_ggIhy_TH0mVuxIdF2kR0/s1243/Rippon%20Tor%20(SX%20746%20755)%20-%20LIDAR%20summit%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1243" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDo89_UZ-yP6odzFOUKZpoCOqgV1ggP8IR3WNELjCgW4qDHLMVa2vBZec6-wVpcMiIx4NTh9CjUtGKkNzFs818Oy6CUcfsjZ-TClFQF3EbQhyphenhyphenBtJZT06V2JzNaH9m3PfTldxwpwusS-_976a2N__INpIxF8y562h5PeGE34-_ggIhy_TH0mVuxIdF2kR0/w640-h362/Rippon%20Tor%20(SX%20746%20755)%20-%20LIDAR%20summit%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Rippon Tor (SX 746 755)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><span style="font-size: 12pt;">The criteria for the list this height revision affects are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> – <i>The 400m Hills of England.</i>
English hills at or above 400m and below 500m in height that have 30m
minimum drop, accompanying the main list are three categories of sub hills, the
400m Sub-Four category, the 390m Sub-Four category and the 390m Double Sub-Four
category. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is co-authored by
Myrddyn Phillips and Aled Williams and the 2<sup>nd</sup> edition of the
booklet containing this list was published by Mapping Mountains Publications on
the 24<sup>th</sup> April 2018</a>.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJqdjF2vKOshUmiBAFVjuKqkIkbriAl0_gfM_BA-JO76KgZGIScnopk3MWt0Vim5Po6_gdtaBjYxuBIZt_awTzdLkkDhzNRzQl1W_-7Y7AcLT3lEi0_0YvXFlkgmOrH5XOf1W1y8wClXd385EhYUDA9Xp6gfzkhZDJAOPlQhAxqf5ISw2OcXx8qHcHwtc/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJqdjF2vKOshUmiBAFVjuKqkIkbriAl0_gfM_BA-JO76KgZGIScnopk3MWt0Vim5Po6_gdtaBjYxuBIZt_awTzdLkkDhzNRzQl1W_-7Y7AcLT3lEi0_0YvXFlkgmOrH5XOf1W1y8wClXd385EhYUDA9Xp6gfzkhZDJAOPlQhAxqf5ISw2OcXx8qHcHwtc/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is listed by is Rippon Tor, and </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">it is adjoined to the Broad Barrow group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are
situated in Dartmoor in the south-west of the country, and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the B3387 road to its north
and minor roads to its west and south-east, and has the town of Bovey Tracey towards
the east north-east.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0R0BoBg_9KHl0rL5u3NcSQJTJlEPIFuh7CKzZFCNLE7YstFJNQ0aDSYid_H2lsl7gcnL1WqwYkD6itBoYbt_U-aTi9ccCmVQ8djVz63K1t7dZZZxEqUjCNN_6v0jkch5Ghc-MYGTeIJQJegvzjgKlvY_LQ0IQOWOWxdjHm0qOGJud0zG1vE18iCgBFDQ/s949/Rippon%20Tor%20(SX%20746%20755)%20-%201%2050000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="591" data-original-width="949" height="398" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0R0BoBg_9KHl0rL5u3NcSQJTJlEPIFuh7CKzZFCNLE7YstFJNQ0aDSYid_H2lsl7gcnL1WqwYkD6itBoYbt_U-aTi9ccCmVQ8djVz63K1t7dZZZxEqUjCNN_6v0jkch5Ghc-MYGTeIJQJegvzjgKlvY_LQ0IQOWOWxdjHm0qOGJud0zG1vE18iCgBFDQ/w640-h398/Rippon%20Tor%20(SX%20746%20755)%20-%201%2050000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:50,000 Landranger map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the listing that is now known as <i>The Fours – The 400m Hills of England</i>
was originally compiled by Myrddyn Phillips, this hill was listed with a 473m
summit height, based on the spot height that appears on the contemporary
Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8bIRKbU1xuKhDMQyCrAiv7HPPXewUGQVI4z0vidtPxuAUazPziCFXvPQEqeBvUhhCn68SKin7JvcdV_o-SpgDF9mOYEqUT56S5p52IJrSaKLKfeMNgvTCR3uMKJu69Yc6vgGFN_oyuzsebur3Q70PHUTbJQZuW3yLT1Apt4HEvJNIPcji_svxnOezPow/s1001/Rippon%20Tor%20(SX%20746%20755)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="594" data-original-width="1001" height="380" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8bIRKbU1xuKhDMQyCrAiv7HPPXewUGQVI4z0vidtPxuAUazPziCFXvPQEqeBvUhhCn68SKin7JvcdV_o-SpgDF9mOYEqUT56S5p52IJrSaKLKfeMNgvTCR3uMKJu69Yc6vgGFN_oyuzsebur3Q70PHUTbJQZuW3yLT1Apt4HEvJNIPcji_svxnOezPow/w640-h380/Rippon%20Tor%20(SX%20746%20755)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the 1<sup>st</sup> edition of the <i>The Fours </i>now co-authored by Myrddyn
Phillips and Aled Williams was published by Europeaklist in December 2013 the
summit height was amended to 477m, with an accompanying note stating:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%;">Summit
height from 1,563.8ft (476.65m [476.47m height relative to Ordnance Datum
Newlyn]) levelled height on Ordnance Survey 1:2,500 map which matches the
rounded up 1,564ft height on the Ordnance Survey New Popular One-Inch map. The imperial height of 1,563ft (476.4m
[476.2m height relative to Ordnance Datum Newlyn]) is also recorded on the
Ordnance Survey Seventh Series One-Inch map.
Summit height of 473m on current Ordnance Survey 1:50,000 and 1:25,000
map. Triangulation pillar with 475.905m
flush bracket height on summit area. The
trig pillar is positioned within a wind shelter and is built on a concrete base
with the ground at the base of the trig being approximately 475.555m - 475.605m
in height, and as the high point of this hill is a substantial slab of rock
positioned a few metres from the wind shelter and an approximate 1m higher than
the base of the trig, the listed height of 477m can also be calculated from
475.6m (base of trig) + 1m = 476.6m.
However, there's still an unusual 3.6m discrepancy in the current 473m
Ordnance Survey map height.</span></i></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the 2<sup>nd</sup> edition of <i>The Fours – The 400m Hills of England</i> co-authored
by Myrddyn Phillips and Aled Williams was published by Mapping Mountains
Publications in April 2018, the height of this hill was reassessed and it was
listed as 476m, with an accompanying note stating:</span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">476m summit
height taken from the 1,563.8ft (476.65m) surface height on the OS Six-Inch map
published in 1886. </span></i><i style="background-color: transparent; text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Triangulation pillar with 475.905m flush bracket height situated
on the summit area and positioned in a wind shelter with its flush bracket 60cm
lower than the summit of the hill, this corresponds with the 476.47m surface
height relative to Ordnance Datum Newlyn.
However, there is still an unusual 3.5m discrepancy between the 476.47m
height and the current 473m OS map height.</span></i></div><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;">The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3FYEKmnpyX-rhHu9FdK8gHV0bFwGs3_vz2VGWhDiGtaBYP_SaDpdNDoy99da82hH1jr_pSRDeMjdCu8AeqXYRqWSGxiJucTrGZ8YGHOFl0LYwlJod1E6AZuU6ie5J99lLIQTfafr4jr0wJzyoON2pOEM2C5EEQgfE9OXnlwx133xAAfgd9xkKnpqT48k/s1243/Rippon%20Tor%20(SX%20746%20755)%20-%20LIDAR%20summit%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3FYEKmnpyX-rhHu9FdK8gHV0bFwGs3_vz2VGWhDiGtaBYP_SaDpdNDoy99da82hH1jr_pSRDeMjdCu8AeqXYRqWSGxiJucTrGZ8YGHOFl0LYwlJod1E6AZuU6ie5J99lLIQTfafr4jr0wJzyoON2pOEM2C5EEQgfE9OXnlwx133xAAfgd9xkKnpqT48k/w640-h360/Rippon%20Tor%20(SX%20746%20755)%20-%20LIDAR%20summit%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Rippon Tor (SX 746 755)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest ground on this
hill as 476.3m positioned at SX 74661 75574, and this </span><span style="background-color: transparent; font-size: 12pt;">comes within the
parameters of the </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Significant Height Revisions
used </span><span style="background-color: transparent; font-size: 12pt;">within
this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Significant Height Revisions applies to
any listed hill whose interpolated height and Ordnance Survey or Harvey map
summit spot height has a 2m or more discrepancy when compared to the survey
result produced by the Trimble GeoXH 6000 or analysis of data produced via
LIDAR, also included are hills whose summit map data is missing an uppermost
ring contour when compared to the data produced by the Trimble or by LIDAR
analysis.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the new listed summit height of this
hill is 476.3m and this was derived from LIDAR analysis, this is 3.3m higher than
its originally listed 473m summit height, which appears as a spot height on the
contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: Broad Barrow <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: Rippon Tor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 191<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height (New Height):
476.3m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference:
SX 74661 75574 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height: 357.6m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference: SX
73917 79116 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop: 118.7m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Myrddyn Phillips and Aled Williams (March 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-86333926782620894942024-03-15T07:00:00.019+00:002024-03-15T09:31:06.415+00:00Mapping Mountains – Significant Name Changes – Y Trichant – The 300m Hills of Wales<p> </p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-align: justify;">Glan y Bronydd (SN 841
386)</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">There has been a
Significant Name Change to a hill that is listed in the <i style="mso-bidi-font-style: normal;">Y Trichant – The 300m Hills of Wales</i>, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">with the summit height, bwlch height and their
locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis
conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8NmT4J3-vuMToL2f0kNf5Sem_0oeVqVE0e51cvkDk5hcyRgNLup4-s0wCRQQ_H7OuL_-fW_jSJv9y_efeD0NKHAy7Yk3Gh8fMBrhuy9aZ7fAjQQTAQ5Dm6GG0q9U6q7FWtpLf_aWa1cm9BhlSLu3abOgCsQ5AaHok-67uCL3MDpVmF6V3pVOVONDAqaA/s1243/Glan%20y%20Bronydd%20(SN%20841%20386)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8NmT4J3-vuMToL2f0kNf5Sem_0oeVqVE0e51cvkDk5hcyRgNLup4-s0wCRQQ_H7OuL_-fW_jSJv9y_efeD0NKHAy7Yk3Gh8fMBrhuy9aZ7fAjQQTAQ5Dm6GG0q9U6q7FWtpLf_aWa1cm9BhlSLu3abOgCsQ5AaHok-67uCL3MDpVmF6V3pVOVONDAqaA/w640-h360/Glan%20y%20Bronydd%20(SN%20841%20386)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Glan y Bronydd (SN 841 386)</td></tr></tbody></table><span style="font-family: "Georgia","serif"; font-size: 12pt;"><br /><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt;">The criteria for the
list that this name change applies to are:</span></div><div style="text-align: justify;"><i style="mso-bidi-font-style: normal; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="mso-bidi-font-style: normal; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of drop.<span style="mso-spacerun: yes;"> </span></span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The
list is authored by Myrddyn Phillips with the <a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the
renaming of it appearing on Mapping Mountains on the 13<sup>th</sup> May 2017</a>,
and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains publication of the list appearing
on the 1<sup>st</sup> January 2022</a>.</span><i style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8RGHHDc19f7Km6Rst8LsZzx9QMeKuVh26RmA4-hUoxO3tj07VWVfbj8lh1wpprBCybiOQN4YW1y1Dh1CR6jYY57zyouS_wMhyXB0wLVuBw5gF7VcE5Ydohs6Ry_mAnVYTl5JNsfCfWUJlMJh_kzNfqbmEGiOba25EWEPjxzTHsSuep5F3S93JFxFpx9o/s719/Y%20Trichant%20-%20Cover%20with%20borderAA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8RGHHDc19f7Km6Rst8LsZzx9QMeKuVh26RmA4-hUoxO3tj07VWVfbj8lh1wpprBCybiOQN4YW1y1Dh1CR6jYY57zyouS_wMhyXB0wLVuBw5gF7VcE5Ydohs6Ry_mAnVYTl5JNsfCfWUJlMJh_kzNfqbmEGiOba25EWEPjxzTHsSuep5F3S93JFxFpx9o/w291-h400/Y%20Trichant%20-%20Cover%20with%20borderAA.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is adjoined to the Mynydd Epynt group of
hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is positioned with minor roads to its north and
south south-east, the A483 road to its west and the A40 road to its south-west,
and has the town of Llanymddfri (Llandovery) towards the west south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i style="mso-bidi-font-style: normal;">Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed under the point (Pt. c 353m) notation with
an estimated c 20m of drop, based on an estimated c 353m summit height and an
estimated c 333m bwlch height, with both heights based on interpolation of 10m
contouring.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg71tjT4xv9uj51Y34pS13BPGjfllxVx-Nhiys1Tukwc242yMIZZc6qfNxuJxaDir8gWpOU8mPTCe76GZz2EJvKljlyiFVuFpLVaUyuZJLpXzn9uMfc8b-5F0JwU10RHIJQJO5gbnUQ87Z4GUCviS41xqkXduNjs3BopdmoioH-zMEa6YU6jYaCEkl9HKY/s1049/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="560" data-original-width="1049" height="342" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg71tjT4xv9uj51Y34pS13BPGjfllxVx-Nhiys1Tukwc242yMIZZc6qfNxuJxaDir8gWpOU8mPTCe76GZz2EJvKljlyiFVuFpLVaUyuZJLpXzn9uMfc8b-5F0JwU10RHIJQJO5gbnUQ87Z4GUCviS41xqkXduNjs3BopdmoioH-zMEa6YU6jYaCEkl9HKY/w640-h342/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">As the summit of this hill comprises bounded land
the details for it were examined on the Tithe map. </span><span style="background-color: transparent; font-size: 12pt;">T</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">he
term Tithe map is generally given to a map of a Welsh or English parish or
township and which was prepared after the 1836 Tithe Commutation Act. This act allowed tithes to be paid in cash
rather than goods. The Tithe maps gave
names of owners and occupiers of land in each parish and importantly for
place-name research they also included the name of enclosed land. This enclosed land is usually based on a
field system, however not every field is given a name, but many are and
especially so in Wales.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhaO27OcNAIBEVJc64XEf83sukeMYesCFFQ-g1NoZ7ksfBmU_RJRyS48l28pElO48-ZpjxhbJ8VWW81v1QufVsxeGnnMr9yF2x1VP-oNelATqciWq0bZ37SP_R3Tm06yQQ9_M8JR6DvjCn0PU0eckTASS6XqiqMB-gEI8QNTu0dhGeIKRRsZVPCqGIRwXI/s890/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%20Tithe.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="657" data-original-width="890" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhaO27OcNAIBEVJc64XEf83sukeMYesCFFQ-g1NoZ7ksfBmU_RJRyS48l28pElO48-ZpjxhbJ8VWW81v1QufVsxeGnnMr9yF2x1VP-oNelATqciWq0bZ37SP_R3Tm06yQQ9_M8JR6DvjCn0PU0eckTASS6XqiqMB-gEI8QNTu0dhGeIKRRsZVPCqGIRwXI/w640-h472/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%20Tithe.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Tithe map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The enclosed land where the summit of this hill is
situated is given the number 2401 on the Tithe map, this can be cross
referenced against the apportionments; it is these apportionments that give the
name of the owner or occupier of the land as well as the name of the land. The land where the summit of this hill is
situated is named as <i>Glan y Bronydd</i>
in the apportionments, with the d</span><span style="background-color: transparent; font-size: 12pt;">etails on the Tithe map </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">appearing in the parish of Llanfair-ar-y-bryn and
in the county named as Carmarthenshire.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxyT_YIga5X5-8X9ExBzgdNZT9AR091eg_s4Ikfm8yfV1dhEyrW5sRSIypzSDcy_JX_1Scq1N6dWOszC1WCFQ0b4-GubEYSBjc_efCBsbT_wER-xrhoYD6h4BtevpaHzoVqAD7wsVFsuM4IkZ_83WKrbH7VyCTwlq4V8U436lcimpHBUIwR_b3-toNWt4/s1187/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%20apportionments.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="722" data-original-width="1187" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxyT_YIga5X5-8X9ExBzgdNZT9AR091eg_s4Ikfm8yfV1dhEyrW5sRSIypzSDcy_JX_1Scq1N6dWOszC1WCFQ0b4-GubEYSBjc_efCBsbT_wER-xrhoYD6h4BtevpaHzoVqAD7wsVFsuM4IkZ_83WKrbH7VyCTwlq4V8U436lcimpHBUIwR_b3-toNWt4/w640-h390/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%20apportionments.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the apportionments</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Therefore, the name this hill is
now listed by in the <i>Y </i></span><i style="background-color: transparent; font-size: 12pt;"><span style="font-size: 12pt;">Trichant – The 300m
Hills of Wales </span></i><span style="background-color: transparent; font-size: 12pt;">i</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">s Glan y Bronydd an</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">d this was derived from the Tithe map.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Glan y Bronydd</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Previously Listed
Name:<span style="mso-spacerun: yes;"> </span>Pt. c 353m</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>354.9m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 84130 38630 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>333.9m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83968 38357 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>21.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-53189844568984845132024-03-14T07:00:00.023+00:002024-03-14T08:40:26.385+00:00Mapping Mountains – Significant Height Revisions – 200m Twmpau<p> </p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;">Mynydd Bach Brechfa (SN 520 286)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Height Revision to a
hill that is listed in the <i style="mso-bidi-font-style: normal;">200m Twmpau</i>,<i style="mso-bidi-font-style: normal;"> </i>with the summit height, bwlch height
and their locations, the drop and status of the hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;">detail produced by <a href="https://mappingmountains.blogspot.com/2020/04/lidar-analysis-joe-nuttall.html">Joe Nuttall</a> in his surface analysis programme, with subsequent <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis
conducted by the DoBIH team and independently by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyptg234XcjvTqKDv_TVBwS7RcbQIrFhyRtc33VV4BUVXyrlfvyLVaS3UmM0tbuaJ9uIupjWQ8aQ2zmi9dor_UJFsp9l4KboaXlqdHilJrq6T1WtRGpIVDHNHZsMvsNL0QboO4Hb11KGcKQUnXNU4mh1LIBUw9KNNi5bDGcNzjn7h5ER0I5gZZb_0ahkk/s1244/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="703" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyptg234XcjvTqKDv_TVBwS7RcbQIrFhyRtc33VV4BUVXyrlfvyLVaS3UmM0tbuaJ9uIupjWQ8aQ2zmi9dor_UJFsp9l4KboaXlqdHilJrq6T1WtRGpIVDHNHZsMvsNL0QboO4Hb11KGcKQUnXNU4mh1LIBUw9KNNi5bDGcNzjn7h5ER0I5gZZb_0ahkk/w640-h362/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Mynydd Bach Brechfa (SN 520 286)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><span style="font-size: 12pt;">The criteria for the list that this height revision applies
to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">200m Twmpau
</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh hills at or above
200m and below 300m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the 200m
Sub-Twmpau, with the criteria for this sub category being all Welsh hills at or
above 200m and below 300m in height with 20m or more and below 30m of drop,
with the word Twmpau being an acronym standing for <b style="mso-bidi-font-weight: normal;">t</b>hirty <b style="mso-bidi-font-weight: normal;">w</b>elsh <b style="mso-bidi-font-weight: normal;">m</b>etre <b style="mso-bidi-font-weight: normal;">p</b>rominences <b style="mso-bidi-font-weight: normal;">a</b>nd <b style="mso-bidi-font-weight: normal;">u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFFFGnxklKWlE7HtQUsJGaMQdi3rhKLRi66GXnPtmVtyMixo5x6eLNEtK_bB-dE2zvuEOOiDsMhyphenhyphenNyoKbTWBU-ZJ5-YnLaFo0APG-oxUapMbGZ1aRFf8b0Il1AZPPsp2Xd8eKOUCE9zyO1Bw8P4W2K89gheDyl4mob6QjEP3MWlPZFqW8TtpfodHUxmks/s714/200m%20Twmpau%20-%20cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="714" data-original-width="522" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFFFGnxklKWlE7HtQUsJGaMQdi3rhKLRi66GXnPtmVtyMixo5x6eLNEtK_bB-dE2zvuEOOiDsMhyphenhyphenNyoKbTWBU-ZJ5-YnLaFo0APG-oxUapMbGZ1aRFf8b0Il1AZPPsp2Xd8eKOUCE9zyO1Bw8P4W2K89gheDyl4mob6QjEP3MWlPZFqW8TtpfodHUxmks/w293-h400/200m%20Twmpau%20-%20cover%20with%20border.jpg" width="293" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">200m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Mynydd Bach
Brechfa and this was derived from the Ordnance Survey series of Six-Inch maps, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">and it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined
to the Mynydd Pencarreg group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the south-western part of South Wales (Region B,
Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the
B4310 road to its north and west, and a minor road to its immediate south-east,
and has the village of Brechfa towards the north north-east.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFj7HL3Hptqwv35LPbuirNjyHDClZTlfqzXVa9FSSKyhmGZLuvzzbjxn2bJh_t2lwtiimoQGWFc0mOmyvr9fQZxEmJRGd8SVHmmtJwDKFXDgD68XbKRbGxUwUEAd6M9JlT-wslAo5NBD-ZAeAYOzIc7nhNYt2iFGwaQF5NuCAVSyIH0YYLILvF_yQolJg/s970/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2050000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="596" data-original-width="970" height="394" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFj7HL3Hptqwv35LPbuirNjyHDClZTlfqzXVa9FSSKyhmGZLuvzzbjxn2bJh_t2lwtiimoQGWFc0mOmyvr9fQZxEmJRGd8SVHmmtJwDKFXDgD68XbKRbGxUwUEAd6M9JlT-wslAo5NBD-ZAeAYOzIc7nhNYt2iFGwaQF5NuCAVSyIH0YYLILvF_yQolJg/w640-h394/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2050000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:50,000 Landranger map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0200-0299.htm">200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was included
in the main P30 category and listed with a 294m summit height, based on the spot
height that appears on the contemporary Ordnance Survey 1:50,000 Landranger and
1:25,000 Explorer map.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg1d3xDrcFNimNexDMQhsWjkGSzgc00hJ-EYK8ajIpN-RGuY2baBHZkZnP9MZKy2lBeLflsLA0nYkcqG2W0L1KG2bTEsa2CYBvvIEZM8lEUcGQejFDrABzwQI5YqSzWASn8PLT9Y_sMmN9x9tasfVW8C1pWrLiHImTTjXyQS36L6dHrlWMKUKMhmFJs28o/s1000/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="598" data-original-width="1000" height="382" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg1d3xDrcFNimNexDMQhsWjkGSzgc00hJ-EYK8ajIpN-RGuY2baBHZkZnP9MZKy2lBeLflsLA0nYkcqG2W0L1KG2bTEsa2CYBvvIEZM8lEUcGQejFDrABzwQI5YqSzWASn8PLT9Y_sMmN9x9tasfVW8C1pWrLiHImTTjXyQS36L6dHrlWMKUKMhmFJs28o/w640-h382/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Since the original publication of the Welsh P30
lists on Geoff Crowder’s v-g.me website there have been a number of maps made
available online. Some of these are
historic such as the series of Six-Inch maps on the National Library of
Scotland website. Whilst others were digitally
updated such as the Ordnance Survey Vector Map Local that was hosted on the
Geograph website and which was entitled the Interactive Coverage Map, whilst
others are current and digitally updated such as the interactive mapping on the
Magic Maps and WalkLakes websites.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The details for this hill were re-assessed when
the Ordnance Survey Vector Map Local hosted on the Geograph website and which
was entitled the Interactive Coverage Map became available online.<span style="mso-spacerun: yes;"> </span>This mapping had many spot heights not on
other publicly available Ordnance Survey maps and for this hill it had 5m
contouring, with the uppermost contour being 295m, resulting in an estimated c
297m summit height based on interpolation and a summit relocation to SN 51818
28761.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed.<span style="mso-spacerun: yes;"> </span>The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg94ltRhQiWx5Q3lmcaac0HCkqOQtnSNmjSRPCh2t7N-gm_0pKZsoV-WTbv84mex8Czkjw4ED0H9QDEMFQf67xft-4VfZGRs7ap-86DYFVe-a3gh0CLpd9n54bMnNqmTuCPuJRjyLGT6bLlig0I8_5WZWE9Ist0ms94EK8XjlFTVCA3qVCpLWaer4NKYPw/s1243/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20summit%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1243" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg94ltRhQiWx5Q3lmcaac0HCkqOQtnSNmjSRPCh2t7N-gm_0pKZsoV-WTbv84mex8Czkjw4ED0H9QDEMFQf67xft-4VfZGRs7ap-86DYFVe-a3gh0CLpd9n54bMnNqmTuCPuJRjyLGT6bLlig0I8_5WZWE9Ist0ms94EK8XjlFTVCA3qVCpLWaer4NKYPw/w640-h362/Mynydd%20Bach%20Brechfa%20(SN%20520%20286)%20-%20LIDAR%20summit%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Mynydd Bach Brechfa (SN 520 286)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest natural ground on
this hill as 296.1m positioned at SN 52039 28618, and when compared to its originally
listed summit height of 294m this comes within the parameters of the
Significant Height Revisions used within this page heading, these parameters
are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Significant Height Revisions applies to
any listed hill whose interpolated height and Ordnance Survey or Harvey map
summit spot height has a 2m or more discrepancy when compared to the survey
result produced by the Trimble GeoXH 6000 or analysis of data produced via
LIDAR, also included are hills whose summit map data is missing an uppermost
ring contour when compared to the data produced by the Trimble or by LIDAR
analysis.</span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;">Therefore, the new listed summit height of this
hill is 296.1m and this was derived from LIDAR analysis, this is 2.1m higher
than the originally listed summit height of 294m, which was based on the spot
height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000
Explorer map.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="display: none; font-family: "Georgia","serif"; font-size: 12pt; mso-hide: all;">ills of Wales, and are reproduced below@</span><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Pencarreg</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Mynydd Bach Brechfa</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height (New
Height):<span style="mso-spacerun: yes;"> </span>296.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 52039 28618 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>223.7m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 51351 28147 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>72.3m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-75634953502659586302024-03-13T07:00:00.016+00:002024-03-13T07:59:21.118+00:00Mapping Mountains – Hill Reclassifications – The Fours – The 400m Hills of England<p class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Wittaburrow (SX 733 752) – 400m Sub-Four addition<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been an addition to the listing of the <i>The Fours – The 400m Hills of England, </i>with
the summit height, col height and their locations, the drop and status of the
hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD5WDJNjoEPsyrexYPFBWFoj3dBy-3JjaCHMwOuBjHJehyeEjNRcvymaFfXmJBO2lx9jPdwMVcYPlQK1hJRkABTAmg_yAOXSynEPFxTsnbDRhOD1yFJVhgvgeAz8GdCb5V5BtHm3JNGtBRxY9fx9CzB1UEfXM6v-pqHmi1eRogrWm094hp-MYa3vGtoMY/s1243/Wittaburrow%20(SX%20733%20752)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD5WDJNjoEPsyrexYPFBWFoj3dBy-3JjaCHMwOuBjHJehyeEjNRcvymaFfXmJBO2lx9jPdwMVcYPlQK1hJRkABTAmg_yAOXSynEPFxTsnbDRhOD1yFJVhgvgeAz8GdCb5V5BtHm3JNGtBRxY9fx9CzB1UEfXM6v-pqHmi1eRogrWm094hp-MYa3vGtoMY/w640-h360/Wittaburrow%20(SX%20733%20752)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Wittaburrow (SX 733 752)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this addition applies
to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> – <i>The 400m Hills of England. </i>English
hills at or above 400m and below 500m in height that have 30m minimum drop,
accompanying the main list are three categories of sub hills, with this hill
being added to the 400m Sub-Four category, the criteria for which are all
English hills at or above 400m and below 500m in height that have 20m or more
and below 30m of drop. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is
co-authored by Myrddyn Phillips and Aled Williams and the 2<sup>nd</sup>
edition of the booklet containing this list was published by Mapping Mountains
Publications on the 24<sup>th</sup> April 2018</a>.</span></div></span><p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsBpzE1xSQQ0wxgQLsrBWZi97J7c-7J9MCWb1nltJQcVzy8C3jGpgTBXLS1gClLDq8Kx4OpPVKA5GxaAGDqkHuwp5ngsVHl6YSrnIjXqUI5GyIZ456gti8uDdLpSVq3lLu-RIDWJn6LCxPFXi3t3Y_2B9Y8z4DbX-8HXWt5FiDqKxbAb2Jbj0wq1YF1gI/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsBpzE1xSQQ0wxgQLsrBWZi97J7c-7J9MCWb1nltJQcVzy8C3jGpgTBXLS1gClLDq8Kx4OpPVKA5GxaAGDqkHuwp5ngsVHl6YSrnIjXqUI5GyIZ456gti8uDdLpSVq3lLu-RIDWJn6LCxPFXi3t3Y_2B9Y8z4DbX-8HXWt5FiDqKxbAb2Jbj0wq1YF1gI/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt; line-height: 115%;">The name the hill is listed by is Wittaburrow and </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt; line-height: 115%;">it is adjoined to the Broad Barrow
group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt; line-height: 115%;">, which are
situated in Dartmoor, in the south-west of the country, and it is positioned with
the B3387 road to its north and minor roads to its west, south and east, and
has the town of Ashburton towards the south south-east.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the 2<sup>nd</sup> edition of the <i>The Fours – The 400m Hills of England</i>
was published by Mapping Mountains Publications in April 2018, this hill was not
included as it was listed with 19m of drop, based on the 403m summit spot
height that appears on the contemporary Ordnance Survey 1:25,000 Explorer map
and the 384m col spot height that appeared on the Ordnance Survey Vector Map
Local hosted on the Geograph website and which was entitled the Interactive
Coverage Map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv5CkGBjV1Uz8yk58lGavvhry7_FAtDHPxLavQ8CGY0HPtMjtzhhFy9AawEsqF7oGU0pMY9FvROGoY9VzIb6iBLwKn3Wd4KTCrSyOQaJ5SoOBFnBClwmJXaG9yp7f_mrcZYlS1Fy_BqH6cUcNWtjjBpN2FXKx4a0h94y32c2EgmUANXGEufDyMBgFoBYs/s977/Wittaburrow%20(SX%20733%20752)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="595" data-original-width="977" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv5CkGBjV1Uz8yk58lGavvhry7_FAtDHPxLavQ8CGY0HPtMjtzhhFy9AawEsqF7oGU0pMY9FvROGoY9VzIb6iBLwKn3Wd4KTCrSyOQaJ5SoOBFnBClwmJXaG9yp7f_mrcZYlS1Fy_BqH6cUcNWtjjBpN2FXKx4a0h94y32c2EgmUANXGEufDyMBgFoBYs/w640-h390/Wittaburrow%20(SX%20733%20752)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;">Therefore, the addition of this hill to 400m
Sub-Four status is due to LIDAR analysis, resulting in a 404.1m summit height
and a 383.5m col height, with these values giving this hill 20.6m of drop,
which is sufficient for 400m Sub-Four status.</span></div></span><p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: Broad Barrow<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: Wittaburrow<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 191<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height: 404.1m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference:
SX 73346 75210 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height: 383.5m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference: SX
73397 75485 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop: 20.6m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">For the additions, deletions and reclassifications to <i>The Fours – The 400m Hills of England</i>
reported on Mapping Mountains since the December 2013 publication of the 1<sup>st</sup>
edition of this list by Europeaklist please consult the following Change
Registers:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><a href="http://mappingmountains.blogspot.com/2017/02/change-register-fours.html">The Fours</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><a href="http://mappingmountains.blogspot.com/2017/02/change-register-fours-400m-sub-fours.html">The Fours – 400m Sub-Four</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><a href="http://mappingmountains.blogspot.com/2017/02/change-register-fours-390m-sub-fours.html">The Fours – 390m Sub-Four</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><a href="http://mappingmountains.blogspot.com/2017/02/change-register-fours-390m-double-sub.html">The Fours – 390m Double Sub-Four</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 14pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Myrddyn Phillips and Aled Williams (March 2024)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-4464326876939938332024-03-12T07:00:00.018+00:002024-03-12T08:32:48.680+00:00Mapping Mountains – Hill Reclassifications – Y Trichant – The 300m Hills of Wales<p> </p><p class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;">Glan y Bronydd (SN 841 386) – Sub-Trichant addition</span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been confirmation of an addition to the
list of <i style="mso-bidi-font-style: normal;">Y Trichant – The 300m Hills of
Wales</i>,<i style="mso-bidi-font-style: normal;"> </i>with the summit height,
bwlch height and their locations, the drop and status of the hill derived from
<a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRPjcOAj76NZQ3lgXHsBWwgVCL3eFs5hk93AhZKnb2bg5zu11DkKCRF1mmwgvn4oZ0SYnrjxZJPg4Sz9SiDmuQYllLRmrr8A0_KMEmfoRsDZUjZsUfdswba0Wo27dHhNEpYxP1gBL6TPhGl-6z0s4UmCntY2-aKkzUe_Q3BrkYHrCPaCKzGSHi9jbfNPE/s1244/Glan%20y%20Bronydd%20(SN%20841%20386)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="703" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRPjcOAj76NZQ3lgXHsBWwgVCL3eFs5hk93AhZKnb2bg5zu11DkKCRF1mmwgvn4oZ0SYnrjxZJPg4Sz9SiDmuQYllLRmrr8A0_KMEmfoRsDZUjZsUfdswba0Wo27dHhNEpYxP1gBL6TPhGl-6z0s4UmCntY2-aKkzUe_Q3BrkYHrCPaCKzGSHi9jbfNPE/w640-h362/Glan%20y%20Bronydd%20(SN%20841%20386)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Glasn y Bronydd (SN 841 386)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this addition
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop.<span style="mso-spacerun: yes;"> </span></span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The list is authored by Myrddyn Phillips with the
<a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13<sup>th</sup> May 2017</a>, and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains
publication of the list appearing on the 1<sup>st</sup> January 2022</a>.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAwt_ybsuGiGvje_u6NfCMgL_6swLcDaEScLbEdBqMLW9XZ9lUqO5LkwoQfSChT5lLA_257S0j92OWYzKuSOBCi19BZ_cuyAwdQhFHtK4NW5c0oa0Ss000mztS4dtTL7luH5NBV_0-z4E8QMpQz5mPDVuyW4X_cfy9b9CtSEhskJ4vkqA11uyCfsEPyE4/s719/Y%20Trichant%20-%20Cover%20with%20borderAA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAwt_ybsuGiGvje_u6NfCMgL_6swLcDaEScLbEdBqMLW9XZ9lUqO5LkwoQfSChT5lLA_257S0j92OWYzKuSOBCi19BZ_cuyAwdQhFHtK4NW5c0oa0Ss000mztS4dtTL7luH5NBV_0-z4E8QMpQz5mPDVuyW4X_cfy9b9CtSEhskJ4vkqA11uyCfsEPyE4/w291-h400/Y%20Trichant%20-%20Cover%20with%20borderAA.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Glan y
Bronydd and this was derived from the Tithe map, and it is adjoined to the
Mynydd Epynt group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are
situated in the central part of South Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is positioned with minor roads to its north and
south south-east, the A483 road to its west and the A40 road to its south-west,
and has the town of Llanymddfri (Llandovery) towards the west south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i style="mso-bidi-font-style: normal;">Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed with an estimated c 20m of drop, based on
an estimated c 353m summit height and an estimated c 333m bwlch height, with
both heights based on interpolation of 10m contouring.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCuvX1FnT7qf29QgprcrHcr_8THS_GEB_-BnWR-zjbSMuY0w0RCZug2SSlAhuxx1LcMB9ORBp8DGFmu6-J4tL5Hl9AkDh5_z6p0qA02AOosa8gwO9bHV7wHrNeCEkrRfR9wpMc78vaHD26kUJVV3bB-a9Cxw5QEmv_1mOTB_hV20HTBvq4WX5SxwOhyGg/s1049/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="560" data-original-width="1049" height="342" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCuvX1FnT7qf29QgprcrHcr_8THS_GEB_-BnWR-zjbSMuY0w0RCZug2SSlAhuxx1LcMB9ORBp8DGFmu6-J4tL5Hl9AkDh5_z6p0qA02AOosa8gwO9bHV7wHrNeCEkrRfR9wpMc78vaHD26kUJVV3bB-a9Cxw5QEmv_1mOTB_hV20HTBvq4WX5SxwOhyGg/w640-h342/Glan%20y%20Bronydd%20(SN%20842%20387)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the confirmation of the addition of
this hill to Sub-Trichant status is due to LIDAR analysis, resulting in a 354.9m
summit height and a 333.9m bwlch height, with these values giving this hill 21.1m
of drop, which is sufficient for it to be classified as a Sub-Trichant.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Glan y Bronydd</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>354.9m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 84130 38630 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>333.9m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83968 38357 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>21.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-82353625826211963422024-03-11T07:00:00.019+00:002024-03-11T07:00:00.216+00:00Mapping Mountains – Summit Relocations – 200m Twmpau<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Cae Cwar y Coed (SN 828
343)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation to a hill that
is listed in the <i>200m Twmpau</i>,<i> </i>with the summit height, bwlch height
and their locations, the drop and status of the hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;"><a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted
by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEht8ZTOdiM287P3LPRCZ1rGjNDzXrGvhW8uOFwfkoZ1_7IVD5fLNEvuEFpZ5mF1LjKlUXDkbhRa3a2do2X-U5EOhlIIhXwwtsRx_vEqmfoK4au-aExHm5lwGaGdPrx_CIIuxa3JLerhcr1MDtLSSxcwwgS9eM4QoVvy37q0HSQHP6sbkU8uxavxDs0B7zQ/s1243/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20hill%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEht8ZTOdiM287P3LPRCZ1rGjNDzXrGvhW8uOFwfkoZ1_7IVD5fLNEvuEFpZ5mF1LjKlUXDkbhRa3a2do2X-U5EOhlIIhXwwtsRx_vEqmfoK4au-aExHm5lwGaGdPrx_CIIuxa3JLerhcr1MDtLSSxcwwgS9eM4QoVvy37q0HSQHP6sbkU8uxavxDs0B7zQ/w640-h360/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20hill%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Cae Cwar y Coed (SN 828 343)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit
relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">200m Twmpau</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;"> - Welsh hills at or above 200m and below 300m in height that have 30m
minimum drop, with an accompanying sub list entitled the 200m Sub-Twmpau, with
the criteria for this sub category being all Welsh hills at or above 200m and
below 300m in height with 20m or more and below 30m of drop, with the word
Twmpau being an acronym standing for <b>t</b>hirty
<b>w</b>elsh <b>m</b>etre <b>p</b>rominences <b>a</b>nd <b>u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjFgaoDMIEJ1TICyAo_r64UP1WDru_0RjItLeobl-ltyAk-XQCNa1QOaX1IW7wXpEkUxjmoPkS0HmG8nlt6erW8G63lnQVJEEmSVmMmbfTbCPhoU-FzUwn_9fmhcEcb8SYzAB0KGwdsP-nNAyAuNwd2Z0mlY9b4asKIycrUEXWjNgH7aDo0Fylot3LNL0/s714/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="714" data-original-width="522" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjFgaoDMIEJ1TICyAo_r64UP1WDru_0RjItLeobl-ltyAk-XQCNa1QOaX1IW7wXpEkUxjmoPkS0HmG8nlt6erW8G63lnQVJEEmSVmMmbfTbCPhoU-FzUwn_9fmhcEcb8SYzAB0KGwdsP-nNAyAuNwd2Z0mlY9b4asKIycrUEXWjNgH7aDo0Fylot3LNL0/w293-h400/200m%20Twmpau%20-%20cover%20with%20borderA.jpg" width="293" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">200m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Cae Cwar y
Coed and this was derived from the Tithe map, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">and it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the Mynydd Epynt
group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with minor roads to its
north-west and east, and the A40 road to its south, and has the town of
Llanymddyfri (Llandovery) towards the west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0200-0299.htm">200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was included
in the main P30 list with a 248m summit height, based on the spot height that
appears on the contemporary Ordnance Survey 1:25,000 Explorer map at SN 82773
34291. This position was subsequently
changed to SN 82761 34285, based on on-site visits and GPS data recorded on the
Hill Bagging website.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVEjnJXAhcOnRti2ikSDVj1oRRtntcTFYp06awBpQ_orMj67AG0Tbj78G_nnS6lzzK_D13OC7-iQ8jeRbDwhyhpe83yoX_tNr0-ccxtsblGlE4Czn4MIC9PvA824DEXPG9xR0kWDkEHYsidC7Po517i4eOMOJLcuhaK-0726e_VKsjYc0aOpuXwuBPwQU/s1062/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="587" data-original-width="1062" height="354" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVEjnJXAhcOnRti2ikSDVj1oRRtntcTFYp06awBpQ_orMj67AG0Tbj78G_nnS6lzzK_D13OC7-iQ8jeRbDwhyhpe83yoX_tNr0-ccxtsblGlE4Czn4MIC9PvA824DEXPG9xR0kWDkEHYsidC7Po517i4eOMOJLcuhaK-0726e_VKsjYc0aOpuXwuBPwQU/w640-h354/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvP1TFySd2WkNAXYRjEs3RraClDViHRvywV_yKzBcNMLOoeLTNo8NIJk7XsES1cVComMz7V0k03rXMTvfM2jtSX-Jph1zSB6xFN8g3wov80zLzPJ9MRI_LLv_2TWdq-lmjDw81fiVAZznSvZkAJmAnMbk2NoZK2NgPpPC8-VyfqYhPMHqR1-yDl7rw3_0/s1243/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20summit%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvP1TFySd2WkNAXYRjEs3RraClDViHRvywV_yKzBcNMLOoeLTNo8NIJk7XsES1cVComMz7V0k03rXMTvfM2jtSX-Jph1zSB6xFN8g3wov80zLzPJ9MRI_LLv_2TWdq-lmjDw81fiVAZznSvZkAJmAnMbk2NoZK2NgPpPC8-VyfqYhPMHqR1-yDl7rw3_0/w640-h360/Cae%20Cwar%20y%20Coed%20(SN%20828%20343)%20-%20LIDAR%20summit%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Cae Cwar y Coed (SN 828 343)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest ground on this
hill as 246.6m positioned at SN 82809 34336, and this position in relation to
the previously listed summit position comes </span><span style="background-color: transparent; font-size: 12pt;">within the parameters of the Summit Relocations
used within this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Summit Relocations applies when the high
point of the hill is found to be positioned; in a different field, to a
different feature such as in a conifer plantation, within a different map contour, to a
different point where a number of potential summit positions are within close
proximity, when natural ground or the natural and intact summit of a hill is
confirmed compared to a higher point such as a raised field boundary or covered
reservoir that is considered a relatively recent man-made construct, or a
relocation of approximately 100 metres or more in distance from either the
position of a map spot height or from where the summit of the hill was
previously thought to exist.</span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;">Therefore, the summit
height produced by LIDAR analysis is 246.6m and this is positioned at SN 82809
34336, this position is not given a spot height on the contemporary Ordnance
Survey 1:50,000 Landranger and 1:25,000 Explorer map, and is approximately 50</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> metres north-eastward from the previously listed
summit position and importantly it is also positioned in a different field.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group: Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name: Cae Cwar y Coed</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 246.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference
(New Position): SN 82809 34336 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 215.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 83737 35272 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 31.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-88528908725873636522024-03-10T19:00:00.003+00:002024-03-10T19:00:00.145+00:00The Fours - The 400m Hills of England<p> </p><p align="center" class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: center;"><span style="font-family: "Georgia","serif"; font-size: 14pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><span style="font-size: 18.6667px;">The Fours - The 400m Hills of England</span></span></p><p align="center" class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: center;"><span style="font-family: "Georgia","serif"; font-size: 14pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><span style="font-size: 18.6667px;">Transitional list with P15 subs</span></span></p><p align="center" class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: center;"><br /></p><p align="center" class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: center;"><span style="font-family: "Georgia","serif"; font-size: 14pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">Introduction</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The 400m hills of England take in a variety of upland landscape, including what can be considered as mountain, moor, heath, grassland and high pasture. These hills take in the majority of upland areas the country has to offer and visiting them will take you on a journey the length and breadth of England.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">This listing is the most comprehensive and accurate to this height band of hills ever published.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"></span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY__2A_DJbCUfdFHqTFzsnj_C_7yiN7FecQW5SS-5WbYf8kwjiC4KzpHitzVkiv0aTz-DiM4koJA8aANXhO5db7lPicxGch-Q89vTVW1EusJtxhhhYzqPkkUcnKxtVZ9MBYzv2QympLC4Po00DTESUN5KFsUJbiThGN8FnJ8dyHiXv83Qs5IGsu81H/s4064/The%20Fours%20-%20with%20border%20and%20text.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2714" data-original-width="4064" height="428" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY__2A_DJbCUfdFHqTFzsnj_C_7yiN7FecQW5SS-5WbYf8kwjiC4KzpHitzVkiv0aTz-DiM4koJA8aANXhO5db7lPicxGch-Q89vTVW1EusJtxhhhYzqPkkUcnKxtVZ9MBYzv2QympLC4Po00DTESUN5KFsUJbiThGN8FnJ8dyHiXv83Qs5IGsu81H/w640-h428/The%20Fours%20-%20with%20border%20and%20text.jpg" width="640" /></a></div><p><br /> </p><p></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The List:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> The listing of the<i> The Fours - The 400m Hills of England </i>takes in all<i> </i>English hills at or above 400m and below 500m in height that have 30m minimum drop, with an accompanying sub list entitled the Sub-Fours, with the criteria for this sub category being all English hills at or above 400m and below 500m in height with 15m or more and below 30m of drop.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Publication History:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> The initial compilation of this list was completed in November 2002 and entitled <i>The 400m Peaks of England</i> and was first published on 19<sup>th</sup> December 2002 on the RHB Yahoo Group file database along with the equivalent Welsh and Manx hills, with the file entitled the <i>400m hills of England, Isle of Man and Wales</i>, this file was uploaded by Rob Woodall who later augmented data from E D ‘Clem’ Clements into the database.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">It was the publication on the RHB Yahoo Group file database that was later duplicated en masse by Mark Jackson without consultation with the author, with these data forming the equivalent part of the <i>Tumps</i>. This has resulted in years of undue data divergence that is ongoing.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The next publication of this list was initiated by Mark Trengove who expressed interest for Europeaklist to publish it. This enabled the list to be fully re-evaluated and leading up to this publication selected updates to the list were posted on the RHB Yahoo Group forum.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The subsequent Europeaklist publication on the 15<sup>th</sup> December 2013 was entitled <i>The Fours</i> and led the way to the list becoming co-authored with Aled Williams. The listing of <i>The Fours</i> was later published on the 6<sup>th</sup> January 2014 by Phil Newby on his Haroldstreet website, and all future updates to the list have been catalogued on the Mapping Mountains site.<span style="color: red;"><o:p></o:p></span></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The list was fully re-assessed for its next publication on the 24<sup>th</sup> April 2018 by Mapping Mountains Publications and on the Haroldstreet website with its title now established as <i>The Fours – The 400m Hills of England</i>.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Maintaining the List:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> The above publications relied upon a hand written master list, which was used for many years with all necessary updates and additional information being added. The list is now maintained in spreadsheet format, with all necessary information appearing in the Mapping Mountains publication. Between the first publication of this list and its latest publication on Mapping Mountains it has undergone a number of significant updates and the timeframe for these are given below.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Significant Updates: <o:p></o:p></span></b></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">2002: The original list did not use interpolation for estimated heights and therefore accepted Ordnance Survey spot heights as fact. With the accompanying <i>Hills to Measure </i>sub list only including P20 hills that once surveyed stood a chance of entering the main P30 list.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">2012: The original list relied upon paper mapping with the newly published Ordnance Survey 1:25,000 Explorer maps prioritised over the 1:50,000 Landranger maps. The advent of online mapping included the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. This mapping had many spot heights not on other publicly available Ordnance Survey maps and enabled a full review of all data in this list. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The subsequent re-evaluation of this list which included drop values, interpolated heights and the accompanying sub list standardised to P20 relied heavily upon the Interactive Coverage Map hosted on the Geograph website. During the updating of this list English 400m hills were listed down to P14 for full capture of P20 subs. These details now form the basis of this transitional listing which for the first time uses P15 subs accompanying the main P30 list.</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">2013: Numerical accuracy within hill lists has dramatically increased compared to when Ordnance Survey paper mapping was the tool of reference. This increased accuracy is due to the advent of independent surveyors using survey grade GNSS receivers and for this list it is the use of the Trimble GeoXH 6000 that has greatly benefited the numerical data, with the first 400m English hill surveyed with this equipment in January 2014 and with these surveys ongoing to the present day.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">2016: The use of the LIDAR (Light Detection & Ranging) technique has revolutionised hill listings resulting in a plethora of reclassifications. Our use of LIDAR started in November 2016 and is ongoing, with this list heavily dependent upon the accuracy produced from LIDAR analysis.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">2022: The Mapping Mountains publication of <i>The Fours - The 400m Hills of England </i>commences on the 1o<sup>th </sup>September. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Major Advances:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> The list has changed greatly since its first publication, with the advent of independent surveyors and the use of LIDAR enabling greater numerical accuracy.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Place name research within hill lists has also made dramatic progress since the first publication of this list, with local enquiry and historical research enabling greater depth and understanding for the hill names used.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Since the advent of Mapping Mountains in November 2013 all status changes to this list are documented in Hill Reclassification posts on this site, with comprehensive Change Registers giving historical context to status changes that have occurred, and with all major significant amendments also documented.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Mapping Mountains Publication:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> For the Mapping Mountains publication of the <i>The Fours - The 400m Hills of England </i>the list has been fully re-evaluated using highly accurate numerical data produced from the LIDAR technique and all available results from the use of GNSS receivers such as with the Trimble GeoXH 6000 and Leica surveys. Each hill name has been considered for its most appropriate use with Ordnance Survey historical and contemporary mapping used in conjunction with any local enquiry. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The accompanying sub list entitled the *Sub-Fours is now listed down to P15 and an explanation for doing this appears toward the end of this introductory article. The end result is the most accurate and comprehensive listing to this height band of hills ever produced.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p align="center" class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: center; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;"><a href="https://docs.google.com/spreadsheets/d/1bmCf7HOkxww-esQZiX88LQRCYbw7SJgv-7Txx5NISOk/edit#gid=0">The Fours –The 400m Hills of England downloadable list in Google Doc format</a><o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 12pt;">The Mapping Mountains list consists of the following:</span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Name:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> This is considered the most appropriate name for the hill, based on local usage where this is known. The name used does not always correspond to contemporary Ordnance Survey map spelling and/or composition or the name may not appear on any Ordnance Survey map. Where an appropriate name is not forthcoming for the hill, the Point (for example; Pt. 465.1m) notation is used rather than making up a name that has no local or historical evidence of use.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="background: white; line-height: normal; text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height (m):</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt;"> This gives the height in metres of the hill above Ordnance Datum Newlyn (ODN), often referred to as sea level. Where a height is quoted to a decimal place it implies that the hill has been surveyed by GNSS receiver (survey grade GPS) or obtained from LIDAR analysis (these heights may not match current Ordnance Survey map heights), with the heights produced by GNSS receiver converted to OSGM15. <span style="color: red;"><o:p></o:p></span></span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></b></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">1:50,000 Map:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> This column gives the number or numbers of the 1:50,000 Ordnance Survey Landranger map that the summit of the hill appears on.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">1:25,000 Map:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> This column gives the number or numbers of the 1:25,000 Ordnance Survey Explorer map that the summit of the hill appears on.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Summit Grid Reference:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> This is the ten figure grid reference for the summit of the hill. This has either been produced by an accurate survey via GNSS receiver or from LIDAR analysis.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Summit Grid Reference extracted from:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> Details of where the ten figure grid reference for the summit was derived.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="background: white; line-height: normal; text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop (m):</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt;"> This column details the prominence of the hill, otherwise known as drop or re-ascent. The drop is the height difference between the summit and the lowest connecting col to the higher parent peak along the watershed. <span style="color: red;"><o:p></o:p></span></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Col Grid Reference:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> This is the ten figure grid reference for the col of the hill. This has either been produced by an accurate survey via GNSS receiver or from LIDAR analysis. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Col Grid Reference extracted from:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> Details of where the ten figure grid reference for the col was derived.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="background: white; line-height: normal; text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;">Col Height (m):</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt;"> This gives the height in metres of the col of the hill above Ordnance Datum Newlyn (ODN), often referred to as sea level. Where a height is quoted to a decimal place it implies that the col has been surveyed by GNSS receiver (survey grade GPS) or obtained from LIDAR analysis (these heights may not match current Ordnance Survey map heights), with the heights produced by GNSS receiver converted to OSGM15. <o:p></o:p></span></p><p class="MsoNormal" style="background: white; line-height: normal; text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Notes:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> This column gives additional information relating to the hill, including headings for Place Name Information, Numerical Data and Listing History, with the latter relating to prominence based hill lists.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">*Sub-Fours:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> For many years the standard sub-list accompanying a P30 main list used 20m minimum drop. The initial reason for including a sub list was to capture those additional hills that may upon re-assessment via map study be included in the main P30 listing. The advent of independent surveyors and LIDAR analysis has granted exceptional numerical accuracy, resulting in many, if not all originally sub listed marginal hills now having their numerical data and hence their status determined. This brings in to question the continued use of a sub list. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">However, if hills whose status is now accurately determined were excluded from a sub list the uninitiated newcomer may query their exclusion. Because of this it is easier to include all sub listed hills, even if their status has been accurately determined. Outside of helping the uninitiated newcomer with documenting accurate heights and drops the initial purpose of a sub list is now redundant.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Because of this the continued use of a sub list has taken on a different role. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Prior to this Mapping Mountains publication of <i>The Fours – The 400m Hills of England</i>, this list included three accompanying sub lists:<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">400m Sub-Fours – English hills at or above 400m and below 500m in height that have 20m or more and below 30m of drop.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">390m Sub-Fours – English hills at or above 390m and below 400m in height that have 30m minimum drop.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Double Sub-Fours – English hills at or above 390m and below 400m in height that have 20m or more and below 30m of drop.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">As the hills in the two 390m sub lists are included in other lists and are outside of the 400m height band that this listing portrays, we are now excluding these sub lists from the transitional list of <i>The Fours – The 400m Hills of England</i>.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">As the primary role of including a sub list has altered from its initial conception and although the continued inclusion of marginal hills whose numerical accuracy and status has been determined benefits the uninitiated newcomer, the primary role of a sub list is now one that is an extension of the main list. Simply put a sub list is now an excuse for listing more hills under the specified height band and by doing so giving a more comprehensive list of hills.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">As our height band is to 400m and as the main list uses a minimum of 30m of drop, within this transitional list we are listing our accompanying sub hills using a minimum of 15m of drop. <o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The use of P15 for our accompanying sub list results in a greater and more comprehensive listing to the 400m hills of England.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Therefore, this transitional list of <i>The Fours – The 400m Hills of England</i> comprises the following:<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">The Fours – English hills at or above 400m and below 500m in height that have 30m minimum drop.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Sub-Fours – English hills at or above 400m and below 500m in height that have 15m or more and below 30m of drop.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">This list and its use of P15 for our Sub-Fours are transitionary as each grouping of hills will be published when full LIDAR coverage is available. Until the list is published in its entirety Mapping Mountains will catalogue changes based on the pre-transitional list.</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Myrddyn Phillips and Aled Williams (September 2022)<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></b></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></b></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;">Access:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt;"> This is a collection of English hills that meet set criteria and although such a list can be a reference for people to visit them, for those wishing to do so they should abide by any legal restriction and if unsure of permissible access ask permission to visit from the respective landowner.<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"> <o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt;">Risks: </span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">Hill walking is an activity with risks and dangers, both natural and man-made. You should not attempt hills beyond your capabilities, and should fully appraise yourself of, and prepare for, the possible risks before attempting to visit any hill. Participants in these activities should be aware of and accept these risks, and be responsible for their own actions and involvement.<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"> </span></p><p class="MsoNormal" style="text-align: justify;"><b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;">Thanks:</span></b><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> With special thanks to Mark Trengove for continued support and advice over many years, Rob Woodall who inputted data for the list published on the RHB Yahoo Group file database and Phil Newby for Harodstreet publication of this list.<o:p></o:p></span></p><p class="MsoNormal" style="text-align: justify;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 18.4px;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;">This list will appear in instalments when Groups of hills are ready to publish. This is dependent upon the availability of full LIDAR coverage; therefore Groups may not appear in numerical order.<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;">When fully appraised Groups of hills will be published at 7.00pm on the 10<sup>th</sup> and/or the 20<sup>th</sup> of each month.<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;">The </span><span style="font-family: Georgia, "serif"; font-size: 18.6667px;">thirty seventh i</span><span style="font-family: Georgia, "serif"; font-size: 18.6667px;">nstalment is to the Worcestershire Beacon group of hills</span><span style="font-family: Georgia, "serif"; font-size: 14pt;">. </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;"> </span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;">The thirty eighth instalment to the Gwaun Ceste group of hills will be published on the 20<sup>th</sup> March 2024.<o:p></o:p></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 14pt;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 14pt;"> </span><span style="color: red; font-family: Georgia, "serif"; font-size: 14pt;"> </span></p><p><a href="https://docs.google.com/spreadsheets/d/1bmCf7HOkxww-esQZiX88LQRCYbw7SJgv-7Txx5NISOk/edit#gid=0" style="font-family: Georgia, "serif"; font-size: 14pt; text-align: center;">The Fours –The 400m Hills of England downloadable list in Google Doc format</a> </p><p><br /></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-70417142357474191912024-03-10T07:00:00.019+00:002024-03-10T09:02:47.668+00:00Mapping Mountains – Significant Name Changes – The Fours – The 400m Hills of England<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; margin-left: 36.0pt; margin-right: 0cm; margin-top: 0cm; margin: 0cm 0cm 0cm 36pt; mso-layout-grid-align: none; text-align: justify; text-autospace: none; text-indent: -36pt;"><span style="font-family: "Georgia","serif"; font-size: 14pt;">White Tor (SX 542 786)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Name Change that is
retrospective to a hill that is listed in the <i>The Fours – The 400m Hills of England, </i>with the summit height, col
height and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a>
analysis conducted by Aled Williams.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgFU_JBzr8dO6Zclx_PtmhyphenhyphenBBUb76jGfKHcFbxUgloakNYb1WlbnWuFqE5lEM8gMQ3hlDKS6c3AUSUXd_4SYDK90qqJSR3A4Jej_AvAjQUTEtulTApQuCxaOqIyc8L4LoXHbOmE28DQm89vLvTr0Pgpsom3aFv0g2xVjADrL-nXAZxCt_FMEf7gxGjLV4/s1244/White%20Tor%20(SX%20542%20786)%20-%20LIDAR%20summit%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1244" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgFU_JBzr8dO6Zclx_PtmhyphenhyphenBBUb76jGfKHcFbxUgloakNYb1WlbnWuFqE5lEM8gMQ3hlDKS6c3AUSUXd_4SYDK90qqJSR3A4Jej_AvAjQUTEtulTApQuCxaOqIyc8L4LoXHbOmE28DQm89vLvTr0Pgpsom3aFv0g2xVjADrL-nXAZxCt_FMEf7gxGjLV4/w640-h360/White%20Tor%20(SX%20542%20786)%20-%20LIDAR%20summit%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of White Tor (SX 542 786)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this name change
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> – <i>The 400m Hills of England.</i>
English hills at or above 400m and below 500m in height that have 30m
minimum drop, accompanying the main list are three categories of sub hills,
these are the 400m Sub-Fours, the 390m Sub-Fours and the 390m Double Sub-Fours. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is co-authored by Myrddyn Phillips
and Aled Williams and the 2<sup>nd</sup> edition of the booklet containing this
list was published by Mapping Mountains Publications on the 24<sup>th</sup>
April 2018</a>.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimdrgLPa-Yw3ieSh7Ju_nqifEx5hnTnBy8LRhUaC-L6J-EgAnXLDFXYMJSLLUTenovR5o54UoxZlKl3XaNERFZwvUiulGeBmHsCt4WoL9E71ayWD56vNcvT_QfmvXu0egR1h24SujnkUtlVz6tovtbJclvwbrltN8z03Pkaw3hFXuutLp9a3PV8fajRVc/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimdrgLPa-Yw3ieSh7Ju_nqifEx5hnTnBy8LRhUaC-L6J-EgAnXLDFXYMJSLLUTenovR5o54UoxZlKl3XaNERFZwvUiulGeBmHsCt4WoL9E71ayWD56vNcvT_QfmvXu0egR1h24SujnkUtlVz6tovtbJclvwbrltN8z03Pkaw3hFXuutLp9a3PV8fajRVc/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the High Willhays group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are
situated in Dartmoor in the south-west of the country, and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with a minor road to its north-west,
the A386 road to its west and the B3357 road to its south, and has the town of
Tavistock towards the south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the listing that is now known as <i>The Fours – The 400m Hills of England</i>
was originally compiled by Myrddyn Phillips this hill appeared under the name of Cudlipptown Down;
which is a prominent name that appears close to its summit on the contemporary
Ordnance Survey 1:25,000 Explorer map, and this was also the name the hill appeared
as when the list was uploaded to the RHB Yahoo group file database.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKgsLEkepV-zxQagVNlW9R-FocLGmNs60JFVDYMO8FiseJ4_3lVH0qrIFVZ5UqWJT5piiB_KsmZkjocoV0LCD-HY2Hm7MwSmAKealzbSadZ20_vD2QYqTjRInAIhiBpKv9mqCZWNXVY3f7-5UoQMfTRbQez2MCk0jEfYVAvwoTwwCBXIbmNiEjKYlYq5M/s1049/White%20Tor%20(SX%20542%20786)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="596" data-original-width="1049" height="364" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKgsLEkepV-zxQagVNlW9R-FocLGmNs60JFVDYMO8FiseJ4_3lVH0qrIFVZ5UqWJT5piiB_KsmZkjocoV0LCD-HY2Hm7MwSmAKealzbSadZ20_vD2QYqTjRInAIhiBpKv9mqCZWNXVY3f7-5UoQMfTRbQez2MCk0jEfYVAvwoTwwCBXIbmNiEjKYlYq5M/w640-h364/White%20Tor%20(SX%20542%20786)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, the listed name of this hill was amended
and given as White Tor when the 1<sup>st</sup> edition of the <i>The Fours </i>now co-authored by Myrddyn Phillips and Aled Williams was published by Europeaklist
in December 2013 and when the 2<sup>nd</sup> edition of <i>The Fours – The 400m Hills of England</i> was published by Mapping
Mountains Publications in April 2018.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the name this hill is now listed by in <i>The Fours - The 400m Hills of England</i> is
White Tor and this was derived from a variety of Ordnance Survey maps,
including the contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: High Willhays <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: White Tor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Previously Listed Name:
Cudlipptown Down <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 191,
201<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height: 468.9m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference:
SX 54288 78667 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height: 438.6m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference: SX
54998 78886 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop: 30.25m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;">Myrddyn Phillips and Aled Williams (March 2024)</span> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-33229214922941468182024-03-09T07:00:00.019+00:002024-03-09T10:13:19.056+00:00Mapping Mountains – Significant Name Changes – Y Trichant – The 300m Hills of Wales<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-align: justify;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-align: justify;">Lan Fawr Cwmclyd (SN 834
377)</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">There has been a
Significant Name Change to a hill that is listed in the <i>Y Trichant – The 300m Hills of Wales</i>, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">with the summit height, bwlch height and their
locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis
conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOQ0KxOyXN7ZZdIJ30JBWz28xkGI9id_EeaalrE7Ygm_DzGIySgTyZ7aSiiPirLE0AwOnxt2YurprbXpkNq2TS9s7ZIPD9KL9jZk9kGGPONK0irL-MsZi6NU4VMXXgCgrMSlDAMMZFQwXed0CLUAggDM-F_lJT6OBsCZIvbZu5w44azfJf3p9io0tAnYo/s1244/Lan%20Fawr%20Cwmclyd%20(SN%20834%20377)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOQ0KxOyXN7ZZdIJ30JBWz28xkGI9id_EeaalrE7Ygm_DzGIySgTyZ7aSiiPirLE0AwOnxt2YurprbXpkNq2TS9s7ZIPD9KL9jZk9kGGPONK0irL-MsZi6NU4VMXXgCgrMSlDAMMZFQwXed0CLUAggDM-F_lJT6OBsCZIvbZu5w44azfJf3p9io0tAnYo/w640-h362/Lan%20Fawr%20Cwmclyd%20(SN%20834%20377)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Fawr Cwmclyd (SN 834 377)</td></tr></tbody></table><span style="font-family: "Georgia","serif"; font-size: 12pt;"><br /><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt;">The criteria for the
list that this name change applies to are:</span></div><div style="text-align: justify;"><i style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of drop. </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The
list is authored by Myrddyn Phillips with the <a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the
renaming of it appearing on Mapping Mountains on the 13<sup>th</sup> May 2017</a>,
and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains publication of the list appearing
on the 1<sup>st</sup> January 2022</a>.</span><i style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_W9UlvLmSD78bkjYxKU7zWiIIvQU0zGQcGnOOrKyBWeJonzZMMG8a-nz9ZHDtWsmn4vLCdzm0n38DRs4UYg3qoVXzkyoqyVwSW-_nSNQ4tHfd6QxurcGFTudiupVs1S8MRs50guG42IYlZR7Q7hWl0tc3avbsuqj54XIXn3hfxUZdjLYzXSoXNS2igQA/s719/Y%20Trichant%20-%20Cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_W9UlvLmSD78bkjYxKU7zWiIIvQU0zGQcGnOOrKyBWeJonzZMMG8a-nz9ZHDtWsmn4vLCdzm0n38DRs4UYg3qoVXzkyoqyVwSW-_nSNQ4tHfd6QxurcGFTudiupVs1S8MRs50guG42IYlZR7Q7hWl0tc3avbsuqj54XIXn3hfxUZdjLYzXSoXNS2igQA/w291-h400/Y%20Trichant%20-%20Cover%20with%20border.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is adjoined to the Mynydd Epynt group of
hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is positioned with the A483 road to its north-west,
and has the town of Llanymddfri (Llandovery) towards the west south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i>Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed under the point (Pt. c 372m) notation with an
estimated c 19m of drop, based on an estimated c 372m summit height and the
353m bwlch spot height that appeared on the Ordnance Survey Vector Map Local
hosted on the Geograph website and which was entitled the Interactive Coverage
Map.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzAfxjRQz-OLypK46M1V8mvguSq2UqYWXOJ9C7kWK_fJSLD3aOrstci8n87D77VyiCtT6T5mFlMVPXG4_gow_MUnpWamH9-aAI0rDgUpFSRyMo4wVDv4TCdZuQR01CHBNqIQ3m7Oi8BrRA0XbTsuyx8XXMeg_M4J6mP7acwF3orRqTqsKyIRBIVb9-CIE/s1118/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="581" data-original-width="1118" height="332" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzAfxjRQz-OLypK46M1V8mvguSq2UqYWXOJ9C7kWK_fJSLD3aOrstci8n87D77VyiCtT6T5mFlMVPXG4_gow_MUnpWamH9-aAI0rDgUpFSRyMo4wVDv4TCdZuQR01CHBNqIQ3m7Oi8BrRA0XbTsuyx8XXMeg_M4J6mP7acwF3orRqTqsKyIRBIVb9-CIE/w640-h332/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">As the summit of this hill comprises bounded land
the details for it were examined on the Tithe map. </span><span style="background-color: transparent; font-size: 12pt;">T</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">he
term Tithe map is generally given to a map of a Welsh or English parish or
township and which was prepared after the 1836 Tithe Commutation Act. This act allowed tithes to be paid in cash
rather than goods. The Tithe maps gave
names of owners and occupiers of land in each parish and importantly for
place-name research they also included the name of enclosed land. This enclosed land is usually based on a
field system, however not every field is given a name, but many are and
especially so in Wales.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8VtxDpHPB3e6qUNTdKTGo477Ct-k7AfoC8E_auQWrTNrXbDto5f5zKScospNLQmeulKAlyXqzcYY5rR7ahomp4K3bxuEx6alzpnQukE2p-8V-EtY-4_oe1B63NYcLNY7zYLFSlJBTLwY3y1Q9pz9IikteU1KYK5AudVvhLFMXeVJmC18MaHhH8ytUZeQ/s889/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%20Tithe.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="655" data-original-width="889" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8VtxDpHPB3e6qUNTdKTGo477Ct-k7AfoC8E_auQWrTNrXbDto5f5zKScospNLQmeulKAlyXqzcYY5rR7ahomp4K3bxuEx6alzpnQukE2p-8V-EtY-4_oe1B63NYcLNY7zYLFSlJBTLwY3y1Q9pz9IikteU1KYK5AudVvhLFMXeVJmC18MaHhH8ytUZeQ/w640-h472/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%20Tithe.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Tithe map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The enclosed land where the summit of this hill is
situated is given the number 2023 on the Tithe map, this can be cross
referenced against the apportionments; it is these apportionments that give the
name of the owner or occupier of the land as well as the name of the land. The land where the summit of this hill is
situated is named as <i>Lan Fawr</i> (of the
farm) Cwmclyd in the apportionments, with the d</span><span style="background-color: transparent; font-size: 12pt;">etails on the Tithe map </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">appearing in the parish of Llanfair-ar-y-bryn and
in the county named as Carmarthenshire.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFV5YNgQFDdursC15QaUfeZZAuSO4aPBpWjzQZZa9hrktNLFOsBvGO3ntDt6R3OSrLrVtGFOi99_J8f9sgIxqj3UvCjem_bT4hWnlIEoq0vhpyJaDqRGE-Z93QeBRGEOJGj7Z3YYprt7evaWbCe64iUvmIxR_-3TGzTzbq2z3Ux9dCOnOxREXmr_NUQhs/s1188/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%20apportionments.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="723" data-original-width="1188" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFV5YNgQFDdursC15QaUfeZZAuSO4aPBpWjzQZZa9hrktNLFOsBvGO3ntDt6R3OSrLrVtGFOi99_J8f9sgIxqj3UvCjem_bT4hWnlIEoq0vhpyJaDqRGE-Z93QeBRGEOJGj7Z3YYprt7evaWbCe64iUvmIxR_-3TGzTzbq2z3Ux9dCOnOxREXmr_NUQhs/w640-h390/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%20apportionments.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the apportionments</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Therefore, the name this hill is
now listed by in the <i>Y </i></span><i style="background-color: transparent; font-size: 12pt;"><span style="font-size: 12pt;">Trichant – The 300m
Hills of Wales </span></i><span style="background-color: transparent; font-size: 12pt;">i</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">s Lan Fawr Cwmclyd an</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">d this was derived from the Tithe map.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group: Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name: Lan Fawr Cwmclyd</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Previously Listed
Name: Pt. c 372m</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 373.0m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference: SN 83431 37781 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 352.8m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 83567 37755 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 20.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p><span style="background-color: white; color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-77112059464707474072024-03-08T07:00:00.018+00:002024-03-08T07:56:41.910+00:00Mapping Mountains – Significant Name Changes – 100m Twmpau<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt; text-align: left;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt; text-align: left;">Lan Fach (SN 630 267)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Name Change to a hill
that is listed in the <i>100m Twmpau</i>, with
the summit height, bwlch height and their locations, the drop and status of the
hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggtxGyICMOX0u1gcRCTf6gMX-GgqQXCPfikJBBZQ7edoUbF-8yVzuHzTl-Nqbj6OaooDElDD4znRIP7SNMO5R4p7vzsVMZX12RkSWUN4YpxCiIvVoduW_tM5aJXH9dpiEcwZtvHuXDP64DfUUHaWleAaJGJCpTUXpNdGEfFXu4i8Idf-TDKo9wL5Rhk0c/s1244/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20summit%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1244" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggtxGyICMOX0u1gcRCTf6gMX-GgqQXCPfikJBBZQ7edoUbF-8yVzuHzTl-Nqbj6OaooDElDD4znRIP7SNMO5R4p7vzsVMZX12RkSWUN4YpxCiIvVoduW_tM5aJXH9dpiEcwZtvHuXDP64DfUUHaWleAaJGJCpTUXpNdGEfFXu4i8Idf-TDKo9wL5Rhk0c/w640-h360/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20summit%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Fach (SN 630 267)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this name change
applies to are:</span></span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">100m Twmpau
</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh hills at or above
100m and below 200m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the 100m
Sub-Twmpau, with the criteria for this sub category being all Welsh hills at or
above 100m and below 200m in height with 20m or more and below 30m of drop,
with the word Twmpau being an acronym standing for <b>t</b>hirty <b>w</b>elsh <b>m</b>etre <b>p</b>rominences <b>a</b>nd <b>u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhY03DrY0-i34niwJBf4rxFPN080jDfocQ4hsGzTnEZ9U6Hr50bVKW0Ms9zrXaebaLSr1jFLOsgyJvaaMEfCUP4pvnM3SQG3Lun4xI2Y2fv4yAN3CbSidtWaZM2js-aCWOUFafIk3f29dit3QeEgBi3LQl1GLYTsETPQdyTSkaxlbzSMEUdSif9mMtSggE/s657/100m%20Twmpau%20-%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="657" data-original-width="463" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhY03DrY0-i34niwJBf4rxFPN080jDfocQ4hsGzTnEZ9U6Hr50bVKW0Ms9zrXaebaLSr1jFLOsgyJvaaMEfCUP4pvnM3SQG3Lun4xI2Y2fv4yAN3CbSidtWaZM2js-aCWOUFafIk3f29dit3QeEgBi3LQl1GLYTsETPQdyTSkaxlbzSMEUdSif9mMtSggE/w283-h400/100m%20Twmpau%20-%20with%20borderA.jpg" width="283" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">100m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is adjoined to the Mynydd Mallaen group
of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with minor roads to its north,
west, south and east, the A40 road farther to its south and the B4302 road
farther to its east, and has the town of Llandeilo towards the south.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0100-0199.htm">100m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i>Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-assessed and it was listed under the point (Pt. c 181m) notation with
an estimated c 20m of drop, based on an estimated c 181m summit height and an
estimated c 161m bwlch height, with both heights based on interpolation of 10m
contouring that appear on the contemporary Ordnance Survey 1:25,000 Explorer
map.</span><span style="background-color: transparent; color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhaUzapBmDuNoyJ3Hl2C0PzCFbWQnf1xS1wv_lic4Jcg7CkAZRz2nc6tGzW75q9QXJ5kIQnXplkBuKFnkeGloCAqv6n4Z8Yq8RA-Pyux4koDz71AHDy-RLLJDQWN0RZyGqP_Yb2YSaUry2BKKwK01Ma09pzI3enzBNJblghWrUrUIVAFpu2pKsBFKA8AbY/s1091/Lan%20Fach%20(SN%20630%20267)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="598" data-original-width="1091" height="350" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhaUzapBmDuNoyJ3Hl2C0PzCFbWQnf1xS1wv_lic4Jcg7CkAZRz2nc6tGzW75q9QXJ5kIQnXplkBuKFnkeGloCAqv6n4Z8Yq8RA-Pyux4koDz71AHDy-RLLJDQWN0RZyGqP_Yb2YSaUry2BKKwK01Ma09pzI3enzBNJblghWrUrUIVAFpu2pKsBFKA8AbY/w640-h350/Lan%20Fach%20(SN%20630%20267)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">As the summit of this hill comprises bounded land
the details for it were examined on the Tithe map. </span><span style="background-color: transparent; font-size: 12pt;">T</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">he
term Tithe map is generally given to a map of a Welsh or English parish or
township and which was prepared after the 1836 Tithe Commutation Act. This act allowed tithes to be paid in cash
rather than goods. The Tithe maps gave
names of owners and occupiers of land in each parish and importantly for
place-name research they also included the name of enclosed land. This enclosed land is usually based on a
field system, however not every field is given a name, but many are and
especially so in Wales.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq1zcXBUuuBiDS9d6W_iLar35am97vOMi9EfqClbiEHiJcNbzIFOz0lqKI3BQrqSAGxmlxR9IPFs4pEB5LyaPw0u8PTWljzvdAMYoI1dS2RsrWdnf9gWu03Goi_-ktEZ88TdFBVkkmwDvC-wjHlr0GXLkTkxBzz8UZwI8_5yYeADsu_GRSkJ7_p7vppT0/s889/Lan%20Fach%20(SN%20630%20267)%20-%20Tithe.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="616" data-original-width="889" height="444" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq1zcXBUuuBiDS9d6W_iLar35am97vOMi9EfqClbiEHiJcNbzIFOz0lqKI3BQrqSAGxmlxR9IPFs4pEB5LyaPw0u8PTWljzvdAMYoI1dS2RsrWdnf9gWu03Goi_-ktEZ88TdFBVkkmwDvC-wjHlr0GXLkTkxBzz8UZwI8_5yYeADsu_GRSkJ7_p7vppT0/w640-h444/Lan%20Fach%20(SN%20630%20267)%20-%20Tithe.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Tithe map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The enclosed land where the summit of this hill is
situated is given the number 2023 on the Tithe map, this can be cross
referenced against the apportionments; it is these apportionments that give the
name of the owner or occupier of the land as well as the name of the land. The land where the summit of this hill is
situated is named as <i>Lan Fach</i> in the
apportionments, with the d</span><span style="background-color: transparent; font-size: 12pt;">etails on the Tithe map </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">appearing
in the parish of Llandeilo Fawr and in the county named as Carmarthen.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPx_cy3LGoQGFbPg_uoZV9jtZ6yZAK1fVjfyHecIDLbT8a9WGi-P3GoxF1LU4rezpGgbqPpUHV_ELnqUgt-80pgH0T7is1AAhEzKLSyEVWv3NmllCOWz-Jv9X8DpXdwDvh1zcsw-ykJVHaHFzNMb41spnSIVGc6bit4Unyqm98ZET1JKSIGxaMMJ-nmlU/s1186/Lan%20Fach%20(SN%20630%20267)%20-%20apportionments.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="725" data-original-width="1186" height="392" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPx_cy3LGoQGFbPg_uoZV9jtZ6yZAK1fVjfyHecIDLbT8a9WGi-P3GoxF1LU4rezpGgbqPpUHV_ELnqUgt-80pgH0T7is1AAhEzKLSyEVWv3NmllCOWz-Jv9X8DpXdwDvh1zcsw-ykJVHaHFzNMb41spnSIVGc6bit4Unyqm98ZET1JKSIGxaMMJ-nmlU/w640-h392/Lan%20Fach%20(SN%20630%20267)%20-%20apportionments.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the apportionments</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Therefore, the name this hill
is now listed by in the <i>100m Twmpau </i>is
Lan Fach, </span><span style="background-color: transparent; font-size: 12pt;">and
this was </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">derived from </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">the Tithe map</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: Mynydd Mallaen<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: Lan Fach<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Previously Listed Name:
Pt. c 181m<i> </i> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 182.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference: SN 63091 26746 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 159.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 62212 26133 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 23.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-18027744236756059282024-03-07T07:00:00.020+00:002024-03-07T08:29:23.546+00:00Mapping Mountains – Significant Name Changes – The Fours – The 400m Hills of England<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-indent: -36pt;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-indent: -36pt;">Corndon Tor (SX 685 741)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Name Change that is
retrospective to a hill that is listed in the <i>The Fours – The 400m Hills of England, </i>with the summit height, col
height and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a>
analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAkEuRA2Sygj2atYWDxs5HnnYUjzsd6LwOmYRupt0ZSxDV9LdMwUTD5Prak4Xbv9pWnY_FO9EWgPpOBHiIihJbNxUDE4lbUIKsq48gBBzCx4I9h1kQ2ioYfUCOEx-iGixoQe5f3WEafHJX6R1nKFopIsGCt8dNSc-cCyfmwjPdUrQVj98EKZ76FStd1es/s1244/Corndon%20Tor%20(SX%20685%20741)%20-%20LIDAR%20summit%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAkEuRA2Sygj2atYWDxs5HnnYUjzsd6LwOmYRupt0ZSxDV9LdMwUTD5Prak4Xbv9pWnY_FO9EWgPpOBHiIihJbNxUDE4lbUIKsq48gBBzCx4I9h1kQ2ioYfUCOEx-iGixoQe5f3WEafHJX6R1nKFopIsGCt8dNSc-cCyfmwjPdUrQVj98EKZ76FStd1es/w640-h362/Corndon%20Tor%20(SX%20685%20741)%20-%20LIDAR%20summit%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Corndon Tor (SX 685 741)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this name change
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> – <i>The 400m Hills of England.</i>
English hills at or above 400m and below 500m in height that have 30m
minimum drop, accompanying the main list are three categories of sub hills,
these are the 400m Sub-Fours, the 390m Sub-Fours and the 390m Double
Sub-Fours. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is co-authored by
Myrddyn Phillips and Aled Williams and the 2<sup>nd</sup> edition of the
booklet containing this list was published by Mapping Mountains Publications on
the 24<sup>th</sup> April 2018</a>.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOp9x_6idWkLeNHEka_ZnH2bxYg0HbtgcTbHBJ76W8tbyOhk8N0dzFc1RQLQBrMJzOq_-0pWt-49cz-5D7NrTVSN2G7_N-U5CxsDqG42sE82mNMR8iJxgLSVxJ0IImrFtKl48Ssc7X0v1Dna0c3CLJskMmtW-7Vx9STc2fx8G7Q2cstM6VcnFslwQR3tc/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOp9x_6idWkLeNHEka_ZnH2bxYg0HbtgcTbHBJ76W8tbyOhk8N0dzFc1RQLQBrMJzOq_-0pWt-49cz-5D7NrTVSN2G7_N-U5CxsDqG42sE82mNMR8iJxgLSVxJ0IImrFtKl48Ssc7X0v1Dna0c3CLJskMmtW-7Vx9STc2fx8G7Q2cstM6VcnFslwQR3tc/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the High Willhays group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are
situated in Dartmoor in the south-west of the country, and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with a minor road to its west, south
and east, and the B3357 road farther to its west, and has the village of
Princetown towards the west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the listing that is now known as <i>The Fours – The 400m Hills of England</i>
was originally compiled by Myrddyn Phillips this hill appeared under the name of Corndon Down;
which is a prominent name that appears close to its summit on the contemporary
Ordnance Survey 1:25,000 Explorer map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiA5HVXRu4WiG83QzBluhypErvPA1iS9-STfjYkCKB_FLlyIKrcyk4pfqH4Qr6V_qNTXCZw9a9jTCwWGuOgrzByeBxvlH9IunrOpIbvOVjKqJ22stHFpz64we0vh9r5TAbJkUDe-cqxO7IfFwmDbrYZdCccDmsRIcmFosec5QSB7Hg3r-TrMtEpDpSTC1U/s1002/Corndon%20Tor%20(SX%20685%20741)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="588" data-original-width="1002" height="376" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiA5HVXRu4WiG83QzBluhypErvPA1iS9-STfjYkCKB_FLlyIKrcyk4pfqH4Qr6V_qNTXCZw9a9jTCwWGuOgrzByeBxvlH9IunrOpIbvOVjKqJ22stHFpz64we0vh9r5TAbJkUDe-cqxO7IfFwmDbrYZdCccDmsRIcmFosec5QSB7Hg3r-TrMtEpDpSTC1U/w640-h376/Corndon%20Tor%20(SX%20685%20741)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the list was uploaded to the RHB Yahoo group
file database the listed name of this hill was given as Corndon Tor, and this
was also the name it appeared as when the 1<sup>st</sup> edition of the <i>The Fours </i>now co-authored by Myrddyn Phillips and Aled Williams was published by Europeaklist
in December 2013 and when the 2<sup>nd</sup> edition of <i>The Fours – The 400m Hills of England</i> was published by Mapping
Mountains Publications in April 2018.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the name this hill is now listed by in <i>The Fours - The 400m Hills of England</i> is
Corndon Tor and this was derived from a variety of Ordnance Survey maps,
including the contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: High Willhays <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: Corndon Tor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Previously Listed Name:
Corndon Down <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 191<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height: 435.1m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference:
SX 68595 74150 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height: 338.0m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference: SX
68102 76285 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop: 97.1m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Myrddyn Phillips and Aled Williams (March 2024)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-57499683207192902062024-03-06T07:00:00.017+00:002024-03-06T09:44:46.807+00:00Mapping Mountains – Hill Reclassifications – Y Trichant – The 300m Hills of Wales<p class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;"><br /></span></p><p class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;">Lan Fawr Cwmclyd (SN 834 377) – Sub-Trichant addition</span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been an addition to the list of <i>Y Trichant – The 300m Hills of Wales</i>,<i> </i>with the summit height, bwlch height
and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a>
analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhixuQ64GsPPlhyphenhyphenTynMjEvWpVuNVv1ah3N1ijOtw35-lsiaNElrWdsAjnscdzqpegMMzNZbh0JUUF2onucogX892JjrLSC-1EOfEDe1BPSiJM16sJ4hoD-wJuQ5V55D0ZYHaeXbumXa9WjU-bqEBE1a1QHSSrtyQgSl9HkMlGZ7KIBY26LPsAzaG1KD0Hc/s1243/Lan%20Fawr%20Cwmclyd%20(SN%20834%20377)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhixuQ64GsPPlhyphenhyphenTynMjEvWpVuNVv1ah3N1ijOtw35-lsiaNElrWdsAjnscdzqpegMMzNZbh0JUUF2onucogX892JjrLSC-1EOfEDe1BPSiJM16sJ4hoD-wJuQ5V55D0ZYHaeXbumXa9WjU-bqEBE1a1QHSSrtyQgSl9HkMlGZ7KIBY26LPsAzaG1KD0Hc/w640-h360/Lan%20Fawr%20Cwmclyd%20(SN%20834%20377)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Fawr Cwmclyd (SN 834 377)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this addition
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop. </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The list is authored by Myrddyn Phillips with the
<a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13<sup>th</sup> May 2017</a>, and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains
publication of the list appearing on the 1<sup>st</sup> January 2022</a>.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVLdXOspMz3KeVuYoua8vtkee09AUSS28ppDSIF9Y_gUMnX2FJJEqEyjnOZNQgBU3uk7iSI4p47aAIqxrjfnW_UeH1fb2STjBhofYnx-W41IOFDgONMr5jsjqt0gfZRY06K8Dz7Npw0-vKFRyP1-T7Mjo88MSeawYaJq4h0f-GtXHHqHU3ObqIPo0mSm0/s719/Y%20Trichant%20-%20Cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVLdXOspMz3KeVuYoua8vtkee09AUSS28ppDSIF9Y_gUMnX2FJJEqEyjnOZNQgBU3uk7iSI4p47aAIqxrjfnW_UeH1fb2STjBhofYnx-W41IOFDgONMr5jsjqt0gfZRY06K8Dz7Npw0-vKFRyP1-T7Mjo88MSeawYaJq4h0f-GtXHHqHU3ObqIPo0mSm0/w291-h400/Y%20Trichant%20-%20Cover%20with%20border.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Lan Fawr
Cwmclyd and this was derived from the Tithe map, and it is adjoined to the
Mynydd Epynt group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated
in the central part of South Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is positioned with the A483 road to its north-west,
and has the town of Llanymddfri (Llandovery) towards the west south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i>Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed with an estimated c 19m of drop, based on an
estimated c 372m summit height and the 353m bwlch spot height that appeared on
the Ordnance Survey Vector Map Local hosted on the Geograph website and which
was entitled the Interactive Coverage Map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyIaH4CMH-qM7ox4NKyUV_EGDilBCwKsDiPyLpbhwfKL2_Y_qGMvkm8zJqPehqc_SH7udYCZsDpeIiUu-sRweK3PRqBJK_Dhw2vUebcyHa8ikpPvKFhj8KsuLjcdr6Zj3phHwZKx_kQgIzxIMmQPGWcA-agM0TiH8cpIkLnDfkgZIwGKlZZ71lLJ_bcw0/s1118/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="581" data-original-width="1118" height="332" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyIaH4CMH-qM7ox4NKyUV_EGDilBCwKsDiPyLpbhwfKL2_Y_qGMvkm8zJqPehqc_SH7udYCZsDpeIiUu-sRweK3PRqBJK_Dhw2vUebcyHa8ikpPvKFhj8KsuLjcdr6Zj3phHwZKx_kQgIzxIMmQPGWcA-agM0TiH8cpIkLnDfkgZIwGKlZZ71lLJ_bcw0/w640-h332/Lan%20Fawr%20Cwmclyd%20(SN%20834%20378)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the addition of this hill to
Sub-Trichant status is due to LIDAR analysis, resulting in a 373.0m summit
height and a 352.8m bwlch height, with these values giving this hill 20.2m of
drop, which is sufficient for it to be classified as a Sub-Trichant.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group: Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name: Lan Fawr Cwmclyd</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 373.0m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference: SN 83431 37781 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 352.8m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 83567 37755 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 20.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-11895042350361783852024-03-05T07:00:00.023+00:002024-03-05T07:12:50.816+00:00Mapping Mountains – Summit Relocations – 100m Twmpau<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Lan Fach (SN 630 267)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation to a hill that
is listed in the <i>100m Twmpau</i>, with
the summit height, bwlch height and their locations, the drop and status of the
hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEid2PSb0vrXpC6sfOay_Rt5bGtHSosUKsWmjZAeXhAYFhVaEXvkKFA0WINTLhK0apMx76OgoKHalUpmP1_DnKm40Om4xZNPq-q6n50z6lWFT5f-cVyhxNlIJtCS9SmKUWtAS74PnF6IXGwq-OM5kWsclGrKnWn6bgLFm2XAaQqxROmGA9_2EriIStaOZ08/s1244/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEid2PSb0vrXpC6sfOay_Rt5bGtHSosUKsWmjZAeXhAYFhVaEXvkKFA0WINTLhK0apMx76OgoKHalUpmP1_DnKm40Om4xZNPq-q6n50z6lWFT5f-cVyhxNlIJtCS9SmKUWtAS74PnF6IXGwq-OM5kWsclGrKnWn6bgLFm2XAaQqxROmGA9_2EriIStaOZ08/w640-h362/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Fach (SN 630 267)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit
relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">100m Twmpau</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;"> - Welsh hills at or above 100m and below 200m in height that have 30m
minimum drop, with an accompanying sub list entitled the 100m Sub-Twmpau, with
the criteria for this sub category being all Welsh hills at or above 100m and
below 200m in height with 20m or more and below 30m of drop, with the word Twmpau
being an acronym standing for <b>t</b>hirty
<b>w</b>elsh <b>m</b>etre <b>p</b>rominences <b>a</b>nd <b>u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWP0o7WvvvJ6qVnpwE3JzFVnBLsqKNH0wf-74lqk1EQXk34pOPgzQCx180ZcUBjPlFa0oj5-HTgSFyfjJYRQ1kfGKExYNV7_UfPse_-jF4i9CMmX1UsOAguHKcRNJqkDnrxjPRta6kbAYhrnK61_u4xZPtGkshZaahQAtdFLsT5ZLsYcJjmbkubxI-RkU/s657/100m%20Twmpau%20-%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="657" data-original-width="463" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWP0o7WvvvJ6qVnpwE3JzFVnBLsqKNH0wf-74lqk1EQXk34pOPgzQCx180ZcUBjPlFa0oj5-HTgSFyfjJYRQ1kfGKExYNV7_UfPse_-jF4i9CMmX1UsOAguHKcRNJqkDnrxjPRta6kbAYhrnK61_u4xZPtGkshZaahQAtdFLsT5ZLsYcJjmbkubxI-RkU/w283-h400/100m%20Twmpau%20-%20with%20borderA.jpg" width="283" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">100m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Lan Fach and
this was derived from the Tithe map, and </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the Mynydd
Mallaen group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with minor roads to its north,
west, south and east, the A40 road farther to its south and the B4302 road
farther to its east, and has the town of Llandeilo towards the south.</span></span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;">When the original </span><a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0100-0199.htm" style="background-color: transparent; font-size: 12pt; text-align: justify;">100m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a><span style="font-size: 12pt; text-align: justify;">, this hill was not
included in the </span><i style="background-color: transparent; font-size: 12pt; text-align: justify;">Hills to be surveyed</i><span style="font-size: 12pt; text-align: justify;">
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="font-size: 12pt; text-align: justify;">A</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">fter the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-assessed and it was listed with an estimated c 20m of drop, based on an
estimated c 181m summit height positioned at SN 631 267 and an estimated c 161m
bwlch height, with both heights based on interpolation of 10m contouring that
appear on the contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDWiyhD0kkMEQR6mUh9Ge5BYHD78yDfsoTpzvxYgNWkrc0yg5_3fpEdx4yK2KMtAyqqYDi89fEUduzYdYKlz_YZ5w86vnMsUTpRGMlvi5ZhnFXDDz2mMi8ewilyusEOarpFHT_UsTZSpK6g_L9HVKEpUSOq8q1Avi8mD7sEeX3W8_XMjs7fcwA2ADJxv8/s1091/Lan%20Fach%20(SN%20630%20267)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="598" data-original-width="1091" height="350" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDWiyhD0kkMEQR6mUh9Ge5BYHD78yDfsoTpzvxYgNWkrc0yg5_3fpEdx4yK2KMtAyqqYDi89fEUduzYdYKlz_YZ5w86vnMsUTpRGMlvi5ZhnFXDDz2mMi8ewilyusEOarpFHT_UsTZSpK6g_L9HVKEpUSOq8q1Avi8mD7sEeX3W8_XMjs7fcwA2ADJxv8/w640-h350/Lan%20Fach%20(SN%20630%20267)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">LIDAR analysis gives the highest ground on this
hill as 183.3m positioned at SN 63094 26744.
However, this is a part of a raised field boundary and protocols dictate
that as this is deemed a relatively recent man-made construct such ground is discounted
from the height of a hill.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSH-Usf_CBNVlWxHfF_3W74mQfwLsvgP0-3EJqpjRrbFo93qA4NkeIyt2dIuY7tsY-cMT9ccjGnaHLR83zs2-svEm5JPEOCDldrdom-l4FJFDel2gdUWrhaSp7AbW3hD8sDKDsvguiVkz2crJxxnc45zNvnpVAGbyDR7FVtiUk8VJUmpPGr2pOxnJm8vY/s1243/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20summit%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1243" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSH-Usf_CBNVlWxHfF_3W74mQfwLsvgP0-3EJqpjRrbFo93qA4NkeIyt2dIuY7tsY-cMT9ccjGnaHLR83zs2-svEm5JPEOCDldrdom-l4FJFDel2gdUWrhaSp7AbW3hD8sDKDsvguiVkz2crJxxnc45zNvnpVAGbyDR7FVtiUk8VJUmpPGr2pOxnJm8vY/w640-h362/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20summit%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Lan Fach (SN 630 267)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The height produced by LIDAR analysis to the highest
remaining natural ground of this hill is 182.6m and is positioned at SN 63091
26746, and this comes within </span><span style="background-color: transparent; font-size: 12pt;">the parameters of the Summit Relocations used within this
page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Summit Relocations applies when the high
point of the hill is found to be positioned; in a different field, to a
different feature such as in a conifer plantation, within a different map contour, to a different
point where a number of potential summit positions are within close proximity,
when natural ground or the natural and intact summit of a hill is confirmed
compared to a higher point such as a raised field boundary or covered reservoir
that is judged to be a relatively recent man-made construct, or a relocation of
approximately 100 metres or more in distance from either the position of a map
spot height or from where the summit of the hill was previously thought to
exist.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the height produced by LIDAR analysis to
the highest remaining natural ground of this hill is 182.6m and is positioned
at SN 63091 26746, </span><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;">this
position is not given a spot height on the contemporary Ordnance Survey
1:50,000 Landranger and 1:25,000 Explorer map, and is approximately 9 metres
north-westward from where the previously estimated summit position was given and
approximately 3 metres north-westward from where the high point of the raised
field boundary is positioned.</span><span style="background-color: transparent; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> <o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group: Mynydd Mallaen</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name: Lan Fach</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 182.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference
(New Position): SN 63091 26746 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 159.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 62212 26133 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 23.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-51017181738443567402024-03-04T07:00:00.023+00:002024-03-04T10:44:43.947+00:00Mapping Mountains – Significant Name Changes – The Fours – The 400m Hills of England<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">South Hessary Tor (SX
597 723)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Name Change that is
retrospective and based on a summit relocation to a hill that is listed in the <i>The Fours – The 400m Hills of England, </i>with
the summit height, col height and their locations, the drop and status of the
hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhd-SrN90mD_Ot55mDIsc57xgaPfS7sEj4FRcgQkVxwaWa1PM-jfqYF-fOxfUWDQJ0d_k80pwJrY22oNyFX3tGh10yBqYmFiMUFHXVue5JpamC_LlydamzHgsKcivKx3mQSeRgi5JjoFskUb-NJufNVljEtMefzzN5fhY8azYuYXxjDYVCJTgDfJUco6A4/s1243/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20hill%204.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhd-SrN90mD_Ot55mDIsc57xgaPfS7sEj4FRcgQkVxwaWa1PM-jfqYF-fOxfUWDQJ0d_k80pwJrY22oNyFX3tGh10yBqYmFiMUFHXVue5JpamC_LlydamzHgsKcivKx3mQSeRgi5JjoFskUb-NJufNVljEtMefzzN5fhY8azYuYXxjDYVCJTgDfJUco6A4/w640-h360/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20hill%204.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of South Hessary Tor (SX 597 723)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this name change
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> – <i>The 400m Hills of England.</i>
English hills at or above 400m and below 500m in height that have 30m
minimum drop, accompanying the main list are three categories of sub hills, the
400m Sub-Four category, the 390m Sub-Four category and the 390m Double Sub-Four
category. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is co-authored by
Myrddyn Phillips and Aled Williams and the 2<sup>nd</sup> edition of the
booklet containing this list was published by Mapping Mountains Publications on
the 24<sup>th</sup> April 2018</a>.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjScw1Z05Eeps9hQJNFYahdi9-PhZdRqM9AsxPc-x_n_v52GxAMwaRor961QhpNiTRRQxe0F0zWCD3sKiAHExzwSVuoiKA8FeeQpW2EMVONDNkW47PVwg2dsv5Vwa7Q75LgiyEH5rDtfjCvF4_rlRRMxIBPBuNGgmw8IcCMYg-E3sU-iKzlPUL4YRGl92Q/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjScw1Z05Eeps9hQJNFYahdi9-PhZdRqM9AsxPc-x_n_v52GxAMwaRor961QhpNiTRRQxe0F0zWCD3sKiAHExzwSVuoiKA8FeeQpW2EMVONDNkW47PVwg2dsv5Vwa7Q75LgiyEH5rDtfjCvF4_rlRRMxIBPBuNGgmw8IcCMYg-E3sU-iKzlPUL4YRGl92Q/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the High Willhays group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are
situated in Dartmoor in the south-west of the country, and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the B3212 road to its
north-west and a minor road to its east, and has the village of Princetown
towards the north-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;">When the listing that is now known as <i>The Fours – The 400m Hills of England</i> was originally compiled by Myrddyn Phillips this hill appeared under the directional name of South Hessary Tor North Top with a summit height of 451m positioned at SX 594 730, based on the spot height that appears on the contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: Georgia, "serif"; font-size: 12pt;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9Lgo6SD8vg6uo95iN4cmp7LNsrsqAZ8tgQ5GSTHgcCrTQMPQhWi1dE7aUlGlDu2Ej4j4niBHK1Rdw1qaUjNZ_JUm2nWPuqyN5mtGJSTqgWQz_shUlmtQZZ_u72-SK3Bw9NiwnOUwxjcokZXbIwIHSis9k05rgFxgIzpg13OYms49uo8TRFjZEFk_lqG8/s1017/South%20Hessary%20Tor%20(SX%20597%20723)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="577" data-original-width="1017" height="364" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9Lgo6SD8vg6uo95iN4cmp7LNsrsqAZ8tgQ5GSTHgcCrTQMPQhWi1dE7aUlGlDu2Ej4j4niBHK1Rdw1qaUjNZ_JUm2nWPuqyN5mtGJSTqgWQz_shUlmtQZZ_u72-SK3Bw9NiwnOUwxjcokZXbIwIHSis9k05rgFxgIzpg13OYms49uo8TRFjZEFk_lqG8/w640-h364/South%20Hessary%20Tor%20(SX%20597%20723)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: Georgia, "serif"; font-size: 12pt;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the 1<sup>st</sup> edition of the <i>The Fours </i>now co-authored by Myrddyn Phillips and Aled Williams was published by Europeaklist
in December 2013, this hill was listed as South Hessary Tor with a 454m summit
height positioned at SX 597 723, based on the spot height that appears on the
Harvey Maps 1:40,000 British Mountain Map to Dartmoor. This is also the name, summit height and
position used when the 2<sup>nd</sup> edition of the <i>The Fours – The 400m Hills of England</i> was published by Mapping
Mountains Publications in April 2018.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjl48ecf-Qn7QDikeTSW5iZ9eUkgTBiRsX2wlgWSmdSZcfsGPhmk3-469w3zE1A1TxgPz6yNGbpn-NQSIGNJHUx3G62eNdOt2ZV97frucbDSFDsS38mrDfE944-KSWQ9M8QcYBWRyMsYtfJtlgstfWC4XZWJaCHsFsENjRkEKv8ro9BdJ5S3TuaFBhrnIM/s3661/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20Harvey%20Map.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2207" data-original-width="3661" height="386" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjl48ecf-Qn7QDikeTSW5iZ9eUkgTBiRsX2wlgWSmdSZcfsGPhmk3-469w3zE1A1TxgPz6yNGbpn-NQSIGNJHUx3G62eNdOt2ZV97frucbDSFDsS38mrDfE944-KSWQ9M8QcYBWRyMsYtfJtlgstfWC4XZWJaCHsFsENjRkEKv8ro9BdJ5S3TuaFBhrnIM/w640-h386/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20Harvey%20Map.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Harvey Maps 1:40,000 British Mountain Map to Dartmoor</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The height produced by LIDAR analysis gives the
highest ground on this hill as 454.1m positioned at SX 59712 72361, as opposed
to the originally listed summit position of 450.7m positioned at SX 59448 73056.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the name this hill is now listed by in <i>The Fours - The 400m Hills of England</i> is
South Hessary Tor and this was instigated from a summit relocation.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: High Willhays <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: South Hessary
Tor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Previously Listed Name:
South Hessary Tor North Top <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 191<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height: 454.1m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference:
SX 59712 72361 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height: 418.9m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference: SX
58746 73462 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop: 35.2m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Myrddyn Phillips and Aled Williams (March 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-41601726687965893422024-03-03T07:00:00.018+00:002024-03-03T09:49:34.396+00:00Mapping Mountains – Significant Name Changes – Y Trichant – The 300m Hills of Wales<p> </p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-align: justify;">Lan Pulput (SN 834 392)</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">There has been a
Significant Name Change to a hill that is listed in the <i style="mso-bidi-font-style: normal;">Y Trichant – The 300m Hills of Wales</i>, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">with the summit height, bwlch height and their
locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis
conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu4xyQqNZW_-aHM4VXTzHm_uvds-eqr_ymtfKe7fcwCilV-f9azBibvXRlFK9g3siHiGYUISC8q2QJXe7TWB4v5e7ndwEfPkpnbiGHStB_yzzqo9OwVL1viXrDC-nStrfdZllKLBTaW7wlzJt6dadLgJ2qNlpw5lMZLrcWza7Hezx_JMBR3_7ga251DdE/s1242/Lan%20Pulput%20(SN%20834%20392)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1242" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu4xyQqNZW_-aHM4VXTzHm_uvds-eqr_ymtfKe7fcwCilV-f9azBibvXRlFK9g3siHiGYUISC8q2QJXe7TWB4v5e7ndwEfPkpnbiGHStB_yzzqo9OwVL1viXrDC-nStrfdZllKLBTaW7wlzJt6dadLgJ2qNlpw5lMZLrcWza7Hezx_JMBR3_7ga251DdE/w640-h360/Lan%20Pulput%20(SN%20834%20392)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Pulput (SN 834 392)</td></tr></tbody></table><span style="font-family: "Georgia","serif"; font-size: 12pt;"><br /><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt;">The criteria for the
list that this name change applies to are:</span></div><div style="text-align: justify;"><i style="mso-bidi-font-style: normal; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="mso-bidi-font-style: normal; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop.<span style="mso-spacerun: yes;"> </span></span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The list is authored by Myrddyn Phillips with the
<a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13<sup>th</sup> May 2017</a>, and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains
publication of the list appearing on the 1<sup>st</sup> January 2022</a>.</span><i style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCSoCSSSdWiUEZ8_S5Dr3idBN6WEoabjnDu5Xb1sf2j5VnT_5zevDXJh5C2C7-DpzEtd6K6W6059YfYqHS86I9ttnIaA1NvzpWagv5lkol4pL0Ed9IyUD7Ph2XY_Gwkyq1uaxAb99Wmsu2SugKd5pzzTM5I8GyvSjJadi7gGWqh31V_ocNcOEcJbB6cBg/s719/Y%20Trichant%20-%20Cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCSoCSSSdWiUEZ8_S5Dr3idBN6WEoabjnDu5Xb1sf2j5VnT_5zevDXJh5C2C7-DpzEtd6K6W6059YfYqHS86I9ttnIaA1NvzpWagv5lkol4pL0Ed9IyUD7Ph2XY_Gwkyq1uaxAb99Wmsu2SugKd5pzzTM5I8GyvSjJadi7gGWqh31V_ocNcOEcJbB6cBg/w291-h400/Y%20Trichant%20-%20Cover%20with%20border.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is adjoined to the Mynydd Epynt group of
hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is positioned with the A483 road to its north-west,
and has the town of Llanymddyfri (Llandovery) towards the south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i style="mso-bidi-font-style: normal;">Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed under the point (Pt. 305m) notation with an
estimated c 22m of drop, based on the 305m summit spot height that appears on
the contemporary Ordnance Survey 1:25,000 Explorer map, and an estimated c 283m
bwlch height, based on interpolation of 10m contouring between 280m – 290m.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTdvlaOJqV2IU4N8JtrXgHsahDsubqje5bjRulnvYF7ECGakQozjqxQUWaQxf68Q-tvtvlrtcQ3H3vdYpbXHiryzaJD2HU7usKdARS8RWBjBwVu2UeEH3oF_zqviGRciFCo1rxgqjp7J4rfXC9W-GLVmHjG-wTnkXxmMfvaOi8KA07QK7_hnJu769GMUw/s1092/Lan%20Pulput%20(SN%20834%20392)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="571" data-original-width="1092" height="334" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTdvlaOJqV2IU4N8JtrXgHsahDsubqje5bjRulnvYF7ECGakQozjqxQUWaQxf68Q-tvtvlrtcQ3H3vdYpbXHiryzaJD2HU7usKdARS8RWBjBwVu2UeEH3oF_zqviGRciFCo1rxgqjp7J4rfXC9W-GLVmHjG-wTnkXxmMfvaOi8KA07QK7_hnJu769GMUw/w640-h334/Lan%20Pulput%20(SN%20834%20392)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">As the summit of this hill comprises bounded land
the details for it were examined on the Tithe map. </span><span style="background-color: transparent; font-size: 12pt;">T</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">he
term Tithe map is generally given to a map of a Welsh or English parish or
township and which was prepared after the 1836 Tithe Commutation Act. This act allowed tithes to be paid in cash
rather than goods. The Tithe maps gave
names of owners and occupiers of land in each parish and importantly for place-name
research they also included the name of enclosed land. This enclosed land is usually based on a
field system, however not every field is given a name, but many are and
especially so in Wales.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgK9jfaRRX6mt4CGARFA3mdr37HMMIfk3U9JlG0VinDHlN7oFMi5-3eLl5B1NsMRivwKqEeET-BOIyFYsU2DBaavhaPuvLdutHWOUvrWnMQvMBmvNpACqgySaDxHItmBCKws5qn2zafrCYfH3gI_Jc1_8nj6g7va80Wrwq7rGr517joQHlVGd2JkBtAG3E/s889/Lan%20Pulput%20(SN%20834%20392)%20-%20Tithe.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="645" data-original-width="889" height="464" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgK9jfaRRX6mt4CGARFA3mdr37HMMIfk3U9JlG0VinDHlN7oFMi5-3eLl5B1NsMRivwKqEeET-BOIyFYsU2DBaavhaPuvLdutHWOUvrWnMQvMBmvNpACqgySaDxHItmBCKws5qn2zafrCYfH3gI_Jc1_8nj6g7va80Wrwq7rGr517joQHlVGd2JkBtAG3E/w640-h464/Lan%20Pulput%20(SN%20834%20392)%20-%20Tithe.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Tithe map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The enclosed land where the summit of this hill is
situated is given the number 2190 on the Tithe map, this can be cross
referenced against the apportionments; it is these apportionments that give the
name of the owner or occupier of the land as well as the name of the land. The land where the summit of this hill is
situated is named as <i>Lan Pulput</i> in
the apportionments, with the d</span><span style="background-color: transparent; font-size: 12pt;">etails on the Tithe map </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">appearing
in the parish of Llanfair-ar-y-bryn and in the county named as Carmarthenshire.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgc1RMDQZv5Udm6anGYc-APShv-64DodkhYg_pr2ICU3dtxzEOYuwbR8QJt7dNVd7uGJ90qVzFFH0w7mCsamcX1KFWeRS1egWN-lIXnZWo1Chxf4fVKy_EUl642RvBX7juTVqDjlsQBONQ1li4KYvrGH2aanETuu-8CcZ36sT_LqDAqR1YgmRRMZeoofoQ/s1188/Lan%20Pulput%20(SN%20834%20392)%20-%20apportionments.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="723" data-original-width="1188" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgc1RMDQZv5Udm6anGYc-APShv-64DodkhYg_pr2ICU3dtxzEOYuwbR8QJt7dNVd7uGJ90qVzFFH0w7mCsamcX1KFWeRS1egWN-lIXnZWo1Chxf4fVKy_EUl642RvBX7juTVqDjlsQBONQ1li4KYvrGH2aanETuu-8CcZ36sT_LqDAqR1YgmRRMZeoofoQ/w640-h390/Lan%20Pulput%20(SN%20834%20392)%20-%20apportionments.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the apportionments</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Therefore, the name this hill is
now listed by in the <i>Y </i></span><i style="background-color: transparent; font-size: 12pt;"><span style="font-size: 12pt;">Trichant – The 300m
Hills of Wales </span></i><span style="background-color: transparent; font-size: 12pt;">i</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">s Lan Pulput an</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">d this was derived from the Tithe map.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Lan Pulput</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Previously Listed
Name:<span style="mso-spacerun: yes;"> </span>Pt. 305m</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>304.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83485 39206 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>283.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83885 39030 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>20.9m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March 2024)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-40636056047251281552024-03-02T07:00:00.016+00:002024-03-02T07:54:54.871+00:00Mapping Mountains – Hill Reclassifications – 100m Twmpau<p> </p><p class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;">Lan Fach (SN 630 267) – 100m Sub-Twmpau addition</span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been confirmation of an addition to the
list of <i style="mso-bidi-font-style: normal;">100m Twmpau</i>,<i style="mso-bidi-font-style: normal;"> </i>with the summit height, bwlch height
and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a>
analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQ3d7k-jsewNElp2ieAUFjLZCHK5hnQdfK7oIknGxZb6CoycquJCk1Vr8C1WJB8L8bS-0sB3LtHjee-Gtsd1i0gAq3bmx18z9NNowxeRNtNYivJobWsa9wlnk8rc0n9FYrUvnJh78PCCS4JSzejFRq8C4zlpxP9uLSwpJtgXPa4nQgsEUXUX6Ts_smKNc/s1243/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20hill%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1243" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQ3d7k-jsewNElp2ieAUFjLZCHK5hnQdfK7oIknGxZb6CoycquJCk1Vr8C1WJB8L8bS-0sB3LtHjee-Gtsd1i0gAq3bmx18z9NNowxeRNtNYivJobWsa9wlnk8rc0n9FYrUvnJh78PCCS4JSzejFRq8C4zlpxP9uLSwpJtgXPa4nQgsEUXUX6Ts_smKNc/w640-h362/Lan%20Fach%20(SN%20630%20267)%20-%20LIDAR%20hill%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Fach (SN 630 267)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this addition
applies to are:</span></span><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">100m Twmpau
</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh hills at or above
100m and below 200m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the 100m
Sub-Twmpau with the criteria for this sub category being all Welsh hills at or
above 100m and below 200m in height with 20m or more and below 30m of drop,
with the word Twmpau being an acronym standing for <b style="mso-bidi-font-weight: normal;">t</b>hirty <b style="mso-bidi-font-weight: normal;">w</b>elsh <b style="mso-bidi-font-weight: normal;">m</b>etre <b style="mso-bidi-font-weight: normal;">p</b>rominences <b style="mso-bidi-font-weight: normal;">a</b>nd <b style="mso-bidi-font-weight: normal;">u</b>pward.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh59TuitTdbGxIFDaHs5ciGL17FnkWLYDxznhDNCHrXRBn8I_0Yf-sCojBpcYoxOcoJ3li6NVG9KOIIF4nA1quZDAoyA9fSeStGsyXnR396Jrq8ZSw2uEnqOaSJcPmVmdYgUPh9IsUcUEfpxx9_pYLjxg5UAMKul3TEdSFTwo5XmhoMMCFKGuce6qg5QUU/s657/100m%20Twmpau%20-%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="657" data-original-width="463" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh59TuitTdbGxIFDaHs5ciGL17FnkWLYDxznhDNCHrXRBn8I_0Yf-sCojBpcYoxOcoJ3li6NVG9KOIIF4nA1quZDAoyA9fSeStGsyXnR396Jrq8ZSw2uEnqOaSJcPmVmdYgUPh9IsUcUEfpxx9_pYLjxg5UAMKul3TEdSFTwo5XmhoMMCFKGuce6qg5QUU/w283-h400/100m%20Twmpau%20-%20with%20borderA.jpg" width="283" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">100m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Lan Fach and
this was derived from the Tithe map, and </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">it is </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">adjoined to the Mynydd Mallaen
group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with minor roads to its north,
west, south and east, the A40 road farther to its south and the B4302 road
farther to its east, and has the town of Llandeilo towards the south.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0100-0199.htm">100m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i style="mso-bidi-font-style: normal;">Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-assessed and it was listed with an estimated c 20m of drop, based on an
estimated c 181m summit height and an estimated c 161m bwlch height, with both
heights based on interpolation of 10m contouring that appear on the
contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVIRfDB9V_qTaBru63vPrCKdfI982ljmMIvXac9ajMoww94VCc34qGdtHxO0dcvtZDy4k_CTHe7ohFxHJoqnSN7BeuugyE7LwRSTthmQ4x1_GHgPh1xUtb04HSXNIlkAKuPmV9vKJiokv9w1uuj3Un6JlLU5itFRz0wBS_vgdxaGcy3ye_TlQxCB-CiDo/s1091/Lan%20Fach%20(SN%20630%20267)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="598" data-original-width="1091" height="350" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVIRfDB9V_qTaBru63vPrCKdfI982ljmMIvXac9ajMoww94VCc34qGdtHxO0dcvtZDy4k_CTHe7ohFxHJoqnSN7BeuugyE7LwRSTthmQ4x1_GHgPh1xUtb04HSXNIlkAKuPmV9vKJiokv9w1uuj3Un6JlLU5itFRz0wBS_vgdxaGcy3ye_TlQxCB-CiDo/w640-h350/Lan%20Fach%20(SN%20630%20267)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the confirmation of the addition of
this hill to 100m Sub-Twmpau status is due to LIDAR analysis, resulting in a 182.6m
summit height and a 159.1m bwlch height, with these values giving this hill 23.4m
of drop, which is sufficient for it to be classified as a 100m Sub-Twmpau.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Mallaen</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Lan Fach</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>182.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 63091 26746 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>159.1m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 62212 26133 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>23.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips (March
2024)<o:p></o:p></span></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-63197499776996107432024-03-01T07:00:00.021+00:002024-03-01T07:56:04.347+00:00Mapping Mountains – Summit Relocations – The Fours – The 400m Hills of England<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">South Hessary Tor (SX
597 723)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation that is
retrospective to a hill that is listed in the <i>The Fours – The 400m Hills of England, </i>with the summit height, col
height and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a>
analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZRJF034VaW5FNoBf8Je7lm_YTbWMZup_hSPiGg2jYfkfjqiET4ZjZ48tg9gbO1GGB5_s7zg3jb_5B5LI3EIC5xeLqpdoNWcZkow4z65ZjFENy07PjGSSsnISapxWJdIYUQrg3XvnTwPYjaX7xEHDp0-ZWHlFli0QS6PBSy8oEv70A8JH_Y28e4jSVVrY/s1224/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1224" height="366" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZRJF034VaW5FNoBf8Je7lm_YTbWMZup_hSPiGg2jYfkfjqiET4ZjZ48tg9gbO1GGB5_s7zg3jb_5B5LI3EIC5xeLqpdoNWcZkow4z65ZjFENy07PjGSSsnISapxWJdIYUQrg3XvnTwPYjaX7xEHDp0-ZWHlFli0QS6PBSy8oEv70A8JH_Y28e4jSVVrY/w640-h366/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of South Hessary Tor (SX 597 723)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit
relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI"; text-align: justify;"> – <i>The 400m Hills of England.</i>
English hills at or above 400m and below 500m in height that have 30m
minimum drop, accompanying the main list are three categories of sub hills, the
400m Sub-Four category, the 390m Sub-Four category and the 390m Double Sub-Four
category. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is co-authored by
Myrddyn Phillips and Aled Williams and the 2<sup>nd</sup> edition of the
booklet containing this list was published by Mapping Mountains Publications on
the 24<sup>th</sup> April 2018</a>.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhikZijHOtro96P9Df_LFpMIcUltV7oRvieuZJKVxnfR75TOUuwrgoGasWYlW9mlHqNpih_FMwysLv9agV8AU9V2kZpOfdQZPVQ2gAiGH6PKDLbQFja0jNdw0lqcbgwJRgBt6IEfQC_kTdrmyKvqDiDOm0q8lqtXReX2i4jP-cFe0ByiCezLV3a3-8qIHI/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhikZijHOtro96P9Df_LFpMIcUltV7oRvieuZJKVxnfR75TOUuwrgoGasWYlW9mlHqNpih_FMwysLv9agV8AU9V2kZpOfdQZPVQ2gAiGH6PKDLbQFja0jNdw0lqcbgwJRgBt6IEfQC_kTdrmyKvqDiDOm0q8lqtXReX2i4jP-cFe0ByiCezLV3a3-8qIHI/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is listed by is South Hessary
Tor, and </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">it is adjoined to the High
Willhays group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in Dartmoor in the south-west of
the country, and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the B3212
road to its north-west and a minor road to its east, and has the village of
Princetown towards the north-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the listing that is now known as <i>The Fours – The 400m Hills of England</i>
was originally compiled this hill appeared under the name of South Hessary Tor
North Top with a summit height of 451m positioned at SX 594 730, based on the
spot height that appears on the contemporary Ordnance Survey 1:25,000 Explorer
map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHsH1jKP2jBuEkJPJJv_QKm5mjAMtneCkX9ifF3DCaLtnBdV5deVzslGw-VAH3pV4DvfkuXONgI9GUnckSSFjuWw6vnHXQc3aJSnxLaseclnyfvMegh1b4PrXPkPrlP3ZDokH2wu0q5ZJh-8cYrkZMHQhDbMRpa8iA_FzcGujkYBQTcDi1h55yxCCtYvI/s1017/South%20Hessary%20Tor%20(SX%20597%20723)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="577" data-original-width="1017" height="364" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHsH1jKP2jBuEkJPJJv_QKm5mjAMtneCkX9ifF3DCaLtnBdV5deVzslGw-VAH3pV4DvfkuXONgI9GUnckSSFjuWw6vnHXQc3aJSnxLaseclnyfvMegh1b4PrXPkPrlP3ZDokH2wu0q5ZJh-8cYrkZMHQhDbMRpa8iA_FzcGujkYBQTcDi1h55yxCCtYvI/w640-h364/South%20Hessary%20Tor%20(SX%20597%20723)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the 1<sup>st</sup> edition of the <i>The Fours </i>was published by Europeaklist
in December 2013, this hill was listed as South Hessary Tor with a 454m summit
height positioned at SX 597 723, based on the spot height that appears on the
Harvey Maps 1:40,000 British Mountain Map to Dartmoor. This is also the summit height and position
used when the 2<sup>nd</sup> edition of the <i>The
Fours – The 400m Hills of England</i> was published by Mapping Mountains
Publications in April 2018.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJv-wJjSFZ9CiZjI2KYGddyNaO9iy97-pOL7zSNKxJA-GHXiX14ciK4QRJz4Hds4aKTedJ56lvKs4XsGbQqfJi7zHVpwRm2i25r7aVw-r_PTiZ3bkh_PjJFc8QiP8WgNzG9u76BkV9STpzuNs_2R7YYyMP2VvBIWkgb5WibkBnuDV5aQfQfTvnz_pyLiU/s3661/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20Harvey%20Map.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2207" data-original-width="3661" height="386" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJv-wJjSFZ9CiZjI2KYGddyNaO9iy97-pOL7zSNKxJA-GHXiX14ciK4QRJz4Hds4aKTedJ56lvKs4XsGbQqfJi7zHVpwRm2i25r7aVw-r_PTiZ3bkh_PjJFc8QiP8WgNzG9u76BkV9STpzuNs_2R7YYyMP2VvBIWkgb5WibkBnuDV5aQfQfTvnz_pyLiU/w640-h386/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20Harvey%20Map.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Harvey Maps 1:40,000 British Mountain Map to Dartmoor</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitcR19Kaxo2PsuD0pBe8jnxXibQzIote83d5CTnUq3K8Vk1M1Up-gv6XFxr-KHD0lhOYOFsKsvj7ZjJV13Q9XSCZxlR2lpBlPNbUgS3hbUdR2btu_G_huLwwpY9-GWQ9mHMhtW4xI-pbp8W1ac_VIwzQEelPapGWcL2Bm5-wHQLkz3AS3cI49vBOVlJMA/s1244/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20summit%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="703" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitcR19Kaxo2PsuD0pBe8jnxXibQzIote83d5CTnUq3K8Vk1M1Up-gv6XFxr-KHD0lhOYOFsKsvj7ZjJV13Q9XSCZxlR2lpBlPNbUgS3hbUdR2btu_G_huLwwpY9-GWQ9mHMhtW4xI-pbp8W1ac_VIwzQEelPapGWcL2Bm5-wHQLkz3AS3cI49vBOVlJMA/w640-h362/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20summit%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of South Hessary Tor (SX 597 723)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest ground on this
hill as 454.1m positioned at SX 59712 72361, as opposed to the originally
listed summit position of 450.7m positioned at SX 59448 73056, and this comes </span><span style="background-color: transparent; font-size: 12pt;">within the parameters of
the Summit Relocations used within this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Summit Relocations applies to when the
high point is positioned in a different field, to a different feature such as a
conifer plantation, within a different map contour, a different point where a
number of potential summit positions are within close proximity, when natural
ground or the natural and intact summit is confirmed compared to a higher point
such as a raised field boundary or covered reservoir that is considered a
relatively recent man-made construct, or a relocation of approximately 100
metres or more in distance from either the position of a map spot height or
from where the summit of the hill was previously thought to exist.</span></div><div style="text-align: justify;"><span style="background-color: transparent; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-size: 12pt; text-align: justify;">Therefore, the summit
height produced by LIDAR analysis is 454.1m and this is positioned at SX 59712
72361. This position is not given a spot
height on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000
Explorer map and is approximately 700 metres south south-eastward from where
the originally listed summit is positioned.</span></div></span><p class="MsoNormal" style="text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%;"> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: High Willhays <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: South Hessary
Tor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 191<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height: 454.1m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference (New Position): SX 59712 72361 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height: 418.9m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference: SX
58746 73462 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop: 35.2m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Myrddyn Phillips and Aled Williams (March 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-17513869431731271542024-02-29T07:00:00.017+00:002024-02-29T07:04:24.546+00:00Mapping Mountains – Hill Reclassifications – Y Trichant – The 300m Hills of Wales<p> </p><p class="MsoNormal" style="text-align: justify;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt;">Lan Pulput (SN 834 392) – Sub-Trichant addition</span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been confirmation of an addition to the
list of <i style="mso-bidi-font-style: normal;">Y Trichant – The 300m Hills of
Wales</i>,<i style="mso-bidi-font-style: normal;"> </i>with the summit height, bwlch
height and their locations, the drop and status of the hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDA</a>R
analysis conducted by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSsRfL2ZG6EJe9YN2Sr9vJ-SwM7E2c_dnJKSVwP_pSBmgDdYzeVi_-jjvlrKD0dLQ7AvZajPq4iPd-7tKIHQ0SyZ7ES_CukFCWb2juZG4aNpvF6tZapB0hO810OhYA06pWBwJg9-wqBXzpp7JnoL7wXqU0fQ6XgnUwLBatKx9JPMyGHgbGRaAav75mmD8/s1243/Lan%20Pulput%20(SN%20834%20392)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="703" data-original-width="1243" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSsRfL2ZG6EJe9YN2Sr9vJ-SwM7E2c_dnJKSVwP_pSBmgDdYzeVi_-jjvlrKD0dLQ7AvZajPq4iPd-7tKIHQ0SyZ7ES_CukFCWb2juZG4aNpvF6tZapB0hO810OhYA06pWBwJg9-wqBXzpp7JnoL7wXqU0fQ6XgnUwLBatKx9JPMyGHgbGRaAav75mmD8/w640-h362/Lan%20Pulput%20(SN%20834%20392)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Lan Pulpit (SN 834 392)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this addition
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop.<span style="mso-spacerun: yes;"> </span></span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The list is authored by Myrddyn Phillips with the
<a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13<sup>th</sup> May 2017</a>, and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains
publication of the list appearing on the 1<sup>st</sup> January 2022</a>.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWExEr1V18yd6GHSJD9Q5JHozKUHNis4SB7e7ck4KIRKfHv2zljAnmi_gMChDJPoKAItTJnlODKXbFhjnME0N52LNTZ9rF8qcBJyIjLZulnCtCzNHn7508QLmf_uMKz_bnzcH3eEd2qg_A-Nj-tEdocBso89DxFH5LeqzctdrSA9Gu9BTBEZCLonoqPPM/s719/Y%20Trichant%20-%20Cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWExEr1V18yd6GHSJD9Q5JHozKUHNis4SB7e7ck4KIRKfHv2zljAnmi_gMChDJPoKAItTJnlODKXbFhjnME0N52LNTZ9rF8qcBJyIjLZulnCtCzNHn7508QLmf_uMKz_bnzcH3eEd2qg_A-Nj-tEdocBso89DxFH5LeqzctdrSA9Gu9BTBEZCLonoqPPM/w291-h400/Y%20Trichant%20-%20Cover%20with%20border.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Lan Pulput and
this was derived from the Tithe map, and it is adjoined to the Mynydd Epynt
group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and it </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">is positioned with the A483 road to its north-west,
and has the town of Llanymddyfri (Llandovery) towards the south-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website</a>, this hill was not
included in the <i style="mso-bidi-font-style: normal;">Hills to be surveyed</i>
sub list, as it was considered not to meet the criteria then used for this sub
category.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed with an estimated c 22m of drop, based on
the 305m summit spot height that appears on the contemporary Ordnance Survey 1:25,000
Explorer map, and an estimated c 283m bwlch height, based on interpolation of
10m contouring between 280m – 290m.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZiSgM3l5Ao_HpEab3mbFMsgMfevjz-yc-ITeRZu69rtLPzBdjjPaHJPKEOgNk8z9-07Jsv3Gk7TGdsZ9bGcm7W93ZmgPVrwlhke-yBRlqhiNG4TsCgJqPlSOzYQ6faNorlXwBMSZHnyhazwfdikRl_gS6Dx6JtShgdi14CSOivadMUfB7o1eI_GGpens/s1092/Lan%20Pulput%20(SN%20834%20392)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="571" data-original-width="1092" height="334" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZiSgM3l5Ao_HpEab3mbFMsgMfevjz-yc-ITeRZu69rtLPzBdjjPaHJPKEOgNk8z9-07Jsv3Gk7TGdsZ9bGcm7W93ZmgPVrwlhke-yBRlqhiNG4TsCgJqPlSOzYQ6faNorlXwBMSZHnyhazwfdikRl_gS6Dx6JtShgdi14CSOivadMUfB7o1eI_GGpens/w640-h334/Lan%20Pulput%20(SN%20834%20392)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the confirmation of the addition of
this hill to Sub-Trichant status is due to LIDAR analysis, resulting in a 304.2m
summit height and a 283.4m bwlch height, with these values giving this hill 20.9m
of drop, which is sufficient for it to be classified as a Sub-Trichant.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Epynt</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Lan Pulput</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>304.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83485 39206 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>283.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83885 39030 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>20.9m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips
(February 2024)<o:p></o:p></span></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-85563907813791328582024-02-28T07:00:00.021+00:002024-02-28T08:19:11.096+00:00Mapping Mountains – Significant Name Changes – 100m Twmpau<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt; text-align: left;"><br /></span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 14pt; text-align: left;">Crug Cwm (SN 612 257)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Name Change to a hill
that is listed in the <i>100m Twmpau</i>, with
the summit height, bwlch height and their locations, the drop and status of the
hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;">detail
produced by <a href="https://mappingmountains.blogspot.com/2020/04/lidar-analysis-joe-nuttall.html">Joe Nuttall</a> in his surface analysis programme, with subsequent
<a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by the DoBIH team and independently by Myrddyn
Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKbF09vD2an50n31nlPMubw3sWpiI4Wd95ourw2NHRBudK6xe4S2FUhFmQN3L7vGP01tpaAaDvynMjH0KTlcuyPsjNXtydc2w0lsa7nxY9yJuzkD1eeeuz7XQq77HOXoVDGitEHG-oisCpsVtNEO_oU2sQ1xh89jSL-108dFwDu3vfwoHi_UWuLjH8iyM/s1243/Crug%20Cwm%20(SN%20612%20257)%20-%20LIDAR%20summit%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="700" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKbF09vD2an50n31nlPMubw3sWpiI4Wd95ourw2NHRBudK6xe4S2FUhFmQN3L7vGP01tpaAaDvynMjH0KTlcuyPsjNXtydc2w0lsa7nxY9yJuzkD1eeeuz7XQq77HOXoVDGitEHG-oisCpsVtNEO_oU2sQ1xh89jSL-108dFwDu3vfwoHi_UWuLjH8iyM/w640-h360/Crug%20Cwm%20(SN%20612%20257)%20-%20LIDAR%20summit%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Crug Cwm (SN 612 257)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this name change
applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">100m Twmpau
</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh hills at or above
100m and below 200m in height that have 30m minimum drop, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the 100m
Sub-Twmpau, with the criteria for this sub category being all Welsh hills at or
above 100m and below 200m in height with 20m or more and below 30m of drop,
with the word Twmpau being an acronym standing for <b>t</b>hirty <b>w</b>elsh <b>m</b>etre <b>p</b>rominences <b>a</b>nd <b>u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: red; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSGFONv9QFk_fOMgU4Lqzww2HXNpN3ZCMeKPUvvEaaNuf0aZ0F36nq0vY8cdX0A9li_nsrs_8tttweg-eOy9GQLqJfryMJiAYEc-ciNXukZtTXNkWJe29JASVT8tcT1TRdfaIb8TlFBxL1K69ANq8ciOPR83nd42QE3IiTwAXi651djT8bIIMpbuECsy4/s657/100m%20Twmpau%20-%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="657" data-original-width="463" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSGFONv9QFk_fOMgU4Lqzww2HXNpN3ZCMeKPUvvEaaNuf0aZ0F36nq0vY8cdX0A9li_nsrs_8tttweg-eOy9GQLqJfryMJiAYEc-ciNXukZtTXNkWJe29JASVT8tcT1TRdfaIb8TlFBxL1K69ANq8ciOPR83nd42QE3IiTwAXi651djT8bIIMpbuECsy4/w283-h400/100m%20Twmpau%20-%20with%20borderA.jpg" width="283" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">100m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is adjoined to the Mynydd Mallaen group
of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned encircled by minor roads, with
the A40 road farther to its south and the B4302 road farther to its east, and
has the town of Llandeilo towards the south south-east.</span></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;">The hill appeared in the
original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0100-0199.htm">Welsh 100m P30 list on Geoff Crowder’s v-g.me website</a>, under the
invented and transposed name of <i>Twyn y Crugcwm</i>,
with an accompanying note stating; <i>Name
from buildings to the East</i>.</span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;"><table class="InnerTable" style="background-color: #250e00; border-collapse: collapse; color: #ffffcc; font-family: Arial, Helvetica, serif; font-size: 15.2px;"><tbody><tr><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">Twyn y Crugcwm</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">190c</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;"><a href="http://www.streetmap.co.uk/newmap.srf?x=261300&y=225900&z=0&st=3&mapp=newmap.srf&searchp=newsearch.srf" style="color: #ffcc99; text-decoration-line: none;" target="_blank" title="StreetMap 1:50000 map">SN613259</a></td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;"></td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">146</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">186</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">Name from buildings to the East.</td></tr></tbody></table></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">During my early hill listing I thought it
appropriate to either invent a name for a hill, or use a name that appeared
near to the summit of the hill on Ordnance Survey maps of the day. My preference was to use farm names and put <i>Pen</i>, <i>Bryn</i>
or <i>Moel</i> in front of them or as in
this instance transpose the name of a farm and add the words <i>Twyn y </i>to it. This is not a practice that I now advocate as
with time and inclination place-name data can be improved either by asking
local people or by examining historic documents, through this form of research
an appropriate name for the hill can usually be found.</span><span style="background-color: transparent; font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmSSa3fxXeqOaFc5k8K31-JfuH6BembHBpGn8Rj6j1QLnX_RSF53Oe2Bwj7eCHefRMRGM8q3YwwujihHL5nExYG3H6FuQB8N1xQEVlK4b_3bc9iRwVt8-hbAI58A_jXhCxXkjap_44gUUlDAqjQdwVJ7Vq0qm23IYUDA_XFuVEF5nZWIU8SDudZnj1lPc/s1000/Crug%20Cwm%20(SN%20612%20257)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="597" data-original-width="1000" height="382" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmSSa3fxXeqOaFc5k8K31-JfuH6BembHBpGn8Rj6j1QLnX_RSF53Oe2Bwj7eCHefRMRGM8q3YwwujihHL5nExYG3H6FuQB8N1xQEVlK4b_3bc9iRwVt8-hbAI58A_jXhCxXkjap_44gUUlDAqjQdwVJ7Vq0qm23IYUDA_XFuVEF5nZWIU8SDudZnj1lPc/w640-h382/Crug%20Cwm%20(SN%20612%20257)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">As the summit of this hill comprises bounded land
the details for it were examined on the Tithe map. </span><span style="background-color: transparent; font-size: 12pt;">T</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">he
term Tithe map is generally given to a map of a Welsh or English parish or
township and which was prepared after the 1836 Tithe Commutation Act. This act allowed tithes to be paid in cash
rather than goods. The Tithe maps gave
names of owners and occupiers of land in each parish and importantly for
place-name research they also included the name of enclosed land. This enclosed land is usually based on a
field system, however not every field is given a name, but many are and
especially so in Wales.</span><span style="color: red; font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkyxV2stg0C9pZ8BPra80y3iK0FPUOdszlWZ6NPYCKCeO8zHWfF3bvT3lKT5p0D6bcsomcervT20LYbYNj48vN9we9rrpd89ot4YDmm8ygqtrE3Fna6g7MiVcacM1jB84uzq_RIuct6DEfah6tzFQidPibS9i9MLg0I97Z11bZaZ9vjdmFYO0nZNFiKFI/s891/Crug%20Cwm%20(SN%20612%20257)%20-%20Tithe.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="642" data-original-width="891" height="462" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkyxV2stg0C9pZ8BPra80y3iK0FPUOdszlWZ6NPYCKCeO8zHWfF3bvT3lKT5p0D6bcsomcervT20LYbYNj48vN9we9rrpd89ot4YDmm8ygqtrE3Fna6g7MiVcacM1jB84uzq_RIuct6DEfah6tzFQidPibS9i9MLg0I97Z11bZaZ9vjdmFYO0nZNFiKFI/w640-h462/Crug%20Cwm%20(SN%20612%20257)%20-%20Tithe.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Tithe map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The enclosed land where the summit of this hill is
situated is given the number 3474 on the Tithe map, this can be cross
referenced against the apportionments; it is these apportionments that give the
name of the owner or occupier of the land as well as the name of the land. The land where the summit of this hill is
situated is named as a part of <i>Crug Cwm </i>farm<i> </i>in the apportionments, with the d</span><span style="background-color: transparent; font-size: 12pt;">etails on the Tithe map </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">appearing in the parish of Llandeilo Fawr and in
the county named as Carmarthen.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjB0mHwEAsVBun8T4KR0ZzbEbPvzJZJqrc4r6wB4GhPWxBgvNR9acNxVPJWnw5xviOthRyKXm6yENJMLq4dRxSnZfyCrZ5C0C5lNXqRq9VIWNxH_jzulnsayE_Q9jsawEnjlnl-3sA-LULDsmSfIhRJIVehyphenhyphenULMh_yaXEwkMKJmyxsyltZ_GHjduTqZayo/s1186/Crug%20Cwm%20(SN%20612%20257)%20-%20apportionments.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="724" data-original-width="1186" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjB0mHwEAsVBun8T4KR0ZzbEbPvzJZJqrc4r6wB4GhPWxBgvNR9acNxVPJWnw5xviOthRyKXm6yENJMLq4dRxSnZfyCrZ5C0C5lNXqRq9VIWNxH_jzulnsayE_Q9jsawEnjlnl-3sA-LULDsmSfIhRJIVehyphenhyphenULMh_yaXEwkMKJmyxsyltZ_GHjduTqZayo/w640-h390/Crug%20Cwm%20(SN%20612%20257)%20-%20apportionments.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the apportionments</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Therefore, the name this hill
is now listed by in the <i>100m Twmpau </i>is
Crug Cwm, </span><span style="background-color: transparent; font-size: 12pt;">and
this was </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">derived from </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">the Tithe map</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group: Mynydd Mallaen<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name: Crug Cwm<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Previously Listed Name:
Twyn y Crugcwm<i> </i> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map: 146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height: 192.8m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference: SN 61260 25753 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height: 159.0m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference: SN 63103 27207 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop: 33.8m (LIDAR)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips
(February 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="color: red; font-family: "Georgia","serif"; font-size: 12pt;"> </span></p>
<p><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span> </p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-60516575262019371072024-02-27T07:00:00.021+00:002024-02-27T08:56:23.300+00:00Mapping Mountains – Significant Height Revisions – The Fours – The 400m Hills of England<p> </p><p class="MsoNormal" style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">South Hessary Tor (SX
597 723)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 14pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Significant Height Revision that
is retrospective and due to a summit relocation to a hill that is listed in the
<i style="mso-bidi-font-style: normal;">The Fours – The 400m Hills of England, </i>with
the summit height, col height and their locations, the drop and status of the
hill derived from <a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by Myrddyn Phillips.</span></p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTWHOC9M2z37xijR0zzOgGfc9Peozdx3K6AjJRtEpuZNLiW01gd07MLae0RYpSkTVBfIPLOZXX-voCoPRfKOUmIyvKgXVy9xg3H_S901vtUBvvl3WHw6T_OyYmCf4TQ2zVhuIL2iXfxdrSt23mxxJG21D6jZ0oPcsfNpa7yaJng7Lo4AnuAbHZNdz7yr8/s1224/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20hill%203.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1224" height="366" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTWHOC9M2z37xijR0zzOgGfc9Peozdx3K6AjJRtEpuZNLiW01gd07MLae0RYpSkTVBfIPLOZXX-voCoPRfKOUmIyvKgXVy9xg3H_S901vtUBvvl3WHw6T_OyYmCf4TQ2zVhuIL2iXfxdrSt23mxxJG21D6jZ0oPcsfNpa7yaJng7Lo4AnuAbHZNdz7yr8/w640-h366/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20hill%203.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of South Hessary Tor (SX 597 723)</td></tr></tbody></table><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"><br /><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt;">The criteria for the list this height revision affects are:</span></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: Georgia, "serif"; font-size: 12pt; line-height: 18.4px;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: Georgia, "serif"; font-size: 12pt; line-height: 18.4px;">The Fours</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: Georgia, "serif"; font-size: 12pt; line-height: 18.4px; text-align: justify;"> – <i>The 400m Hills of England.</i> English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, the 400m Sub-Four category, the 390m Sub-Four category and the 390m Double Sub-Four category. <a href="http://mappingmountainspublications.blogspot.com/p/the-fours-englsih-400m-p30s.html">The list is co-authored by Myrddyn Phillips and Aled Williams and the 2<sup>nd</sup> edition of the booklet containing this list was published by Mapping Mountains Publications on the 24<sup>th</sup> April 2018</a>.</span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOMOM33abuvQt6rcTOHxwt8Kg0U-_DO4FrUyqZXUwmkBffRoNusw8xV5zp_Pl9TnsE3kzZzZvARbIh9hypmke3F4GETx_cdYH4tbxwL3UNx3KTcP_WfvP-PDNRomrpeWctBBbyG-j3anhLKfQzEEmarvNXqnX_qNnwuxbeaEWWP5UoKquC4ZNHhkqeD0w/s908/The%20Fours%20-%20cover%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="908" data-original-width="682" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOMOM33abuvQt6rcTOHxwt8Kg0U-_DO4FrUyqZXUwmkBffRoNusw8xV5zp_Pl9TnsE3kzZzZvARbIh9hypmke3F4GETx_cdYH4tbxwL3UNx3KTcP_WfvP-PDNRomrpeWctBBbyG-j3anhLKfQzEEmarvNXqnX_qNnwuxbeaEWWP5UoKquC4ZNHhkqeD0w/w300-h400/The%20Fours%20-%20cover%20with%20borderA.jpg" width="300" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is listed by is South Hessary
Tor, and </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">it is adjoined to the High Willhays
group of hills</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in Dartmoor in the south-west of
the country, and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the B3212
road to its north-west and a minor road to its east, and has the village of Princetown
towards the north-west.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the listing that is now known as <i style="mso-bidi-font-style: normal;">The Fours – The 400m Hills of England</i>
was originally compiled this hill appeared under the name of South Hessary Tor
North Top with a summit height of 451m positioned at SX 594 730, based on the
spot height that appears on the contemporary Ordnance Survey 1:25,000 Explorer
map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwBqhyphenhyphenA-1Sza1Qi3b6bnk9MIMr79E5Yb8NuZ0KjSBd1zP9k4QzYi9IGlkUhN41Z2QQmECUuSsIOuPeo9d7H7Vys-vPd7LVpvHo0mDkTzDO5PobCBWg4j1vBZtjmO-A1aR5pMp3xtoRxTud-KPHvh15JtzLF2au2Pi3IAo3w3ceizMvTkKJ8YMcTy8mJns/s1017/South%20Hessary%20Tor%20(SX%20597%20723)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="577" data-original-width="1017" height="364" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwBqhyphenhyphenA-1Sza1Qi3b6bnk9MIMr79E5Yb8NuZ0KjSBd1zP9k4QzYi9IGlkUhN41Z2QQmECUuSsIOuPeo9d7H7Vys-vPd7LVpvHo0mDkTzDO5PobCBWg4j1vBZtjmO-A1aR5pMp3xtoRxTud-KPHvh15JtzLF2au2Pi3IAo3w3ceizMvTkKJ8YMcTy8mJns/w640-h364/South%20Hessary%20Tor%20(SX%20597%20723)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">When the 1<sup>st</sup> edition of the <i>The Fours </i>was published by Europeaklist
in December 2013, this hill was listed as South Hessary Tor with a 454m summit
height positioned at SX 597 723, based on the spot height that appears on the Harvey
Maps 1:40,000 British Mountain Map to Dartmoor.
This is also the summit height and position used when the 2<sup>nd</sup>
edition of the <i>The Fours – The 400m Hills
of England</i> was published by Mapping Mountains Publications in April 2018.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv-s5kVbWe9tmflBI8-pq0b8dwpMgO29paS30ecQUfnOBIt954gOyYSf_G_uNlMr4MguEXEzMEiBkunCc0BTUSZdcksnLM9nNaxWoGSGu2KbMha48zFK0iz2Ene4I2qi1VRgEvxvEXgvaNsdMaciIF1l91eMKsRXcr7nOW7OPhary0v8hbykhIwP86T2o/s3661/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20Harvey%20Map.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="2207" data-original-width="3661" height="386" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv-s5kVbWe9tmflBI8-pq0b8dwpMgO29paS30ecQUfnOBIt954gOyYSf_G_uNlMr4MguEXEzMEiBkunCc0BTUSZdcksnLM9nNaxWoGSGu2KbMha48zFK0iz2Ene4I2qi1VRgEvxvEXgvaNsdMaciIF1l91eMKsRXcr7nOW7OPhary0v8hbykhIwP86T2o/w640-h386/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20Harvey%20Map.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Harvey Maps 1:40,000 British Mountain Map to Dartmoor</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgrm0oPovlCPOZzfpXEMWNntqlhjCfaS11JGbfM_55pO7m7FouOwjM3LjjhctGMvYHMXly72LzeAUsuk1aYF5WUPYLCUOZpfykTDR1Gaml8-Z35MErGcjOlrMmjqiP-7-7rrlDL7UlyT3U06wASrCeRKbud5G5zzWjWtVtR9tpNNbWDyKDQ2E4kTQ92P-s/s1244/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20summit%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="703" data-original-width="1244" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgrm0oPovlCPOZzfpXEMWNntqlhjCfaS11JGbfM_55pO7m7FouOwjM3LjjhctGMvYHMXly72LzeAUsuk1aYF5WUPYLCUOZpfykTDR1Gaml8-Z35MErGcjOlrMmjqiP-7-7rrlDL7UlyT3U06wASrCeRKbud5G5zzWjWtVtR9tpNNbWDyKDQ2E4kTQ92P-s/w640-h362/South%20Hessary%20Tor%20(SX%20597%20723)%20-%20LIDAR%20summit%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of South Hessary Tor (SX 597 723)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest ground on this
hill as 454.1m positioned at SX 59712 72361, as opposed to the originally
listed summit position of 450.7m positioned at SX 59448 73056, and this </span><span style="background-color: transparent; font-size: 12pt;">comes within the
parameters of the </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Significant Height Revisions
used </span><span style="background-color: transparent; font-size: 12pt;">within
this page heading, these parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Significant Height Revisions applies to
any listed hill whose interpolated height and Ordnance Survey or Harvey map
summit spot height has a 2m or more discrepancy when compared to the survey
result produced by the Trimble GeoXH 6000 or analysis of data produced via
LIDAR, also included are hills whose summit map data is missing an uppermost
ring contour when compared to the data produced by the Trimble or by LIDAR
analysis.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the listed summit height of this hill
is 454.1m and this was derived from LIDAR analysis, this is 3.1m higher than
the originally listed summit height which was based on the 451m spot height
that appears on the contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">The full details for the hill are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Group:<span style="mso-spacerun: yes;"> </span>High Willhays <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Name:<span style="mso-spacerun: yes;"> </span>South Hessary
Tor<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>191<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Height (New Height):<span style="mso-spacerun: yes;">
</span>454.1m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Summit Grid Reference:<span style="mso-spacerun: yes;">
</span>SX 59712 72361 (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Height:<span style="mso-spacerun: yes;"> </span>418.9m
(LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Col Grid Reference:<span style="mso-spacerun: yes;"> </span>SX
58746 73462 (LIDAR)</span><span style="font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: Calibri; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Drop:<span style="mso-spacerun: yes;"> </span>35.2m (LIDAR)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">Myrddyn Phillips and Aled Williams (February 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: red;"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-7627795727084355262024-02-26T07:00:00.029+00:002024-02-26T09:18:50.186+00:00Mapping Mountains – Significant Name Changes – Y Trichant – The 300m Hills of Wales <p> </p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt; text-align: justify;">Dorth Siwgr (SN 834 427)</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">There has been a
Significant Name Change to a hill that is listed in the <i style="mso-bidi-font-style: normal;">Y Trichant – The 300m Hills of Wales</i>, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">with the summit height, bwlch height and their
locations, the drop and status of the hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;"><a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted
by Myrddyn Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOVxTKvVxv1CHYw-NRPZM71Lg-N9vP2jcKKkI-o-R3oNz4yf8btHi1auKGG0HBOe3cM796MfahQOBhWYUouaOkRBySngIfIOBHU-uv1LrlUA4QRQfQVOoIy-NGvpRuPck770M8nj53lqeycaKgNjWZk77KGeLMDkBDhVTH4qnvcgOkyjCYrA0ifyRMasw/s1243/Sugar%20Loaf%20(SN%20834%20427)%20-%20LIDAR%20hill%204.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="701" data-original-width="1243" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOVxTKvVxv1CHYw-NRPZM71Lg-N9vP2jcKKkI-o-R3oNz4yf8btHi1auKGG0HBOe3cM796MfahQOBhWYUouaOkRBySngIfIOBHU-uv1LrlUA4QRQfQVOoIy-NGvpRuPck770M8nj53lqeycaKgNjWZk77KGeLMDkBDhVTH4qnvcgOkyjCYrA0ifyRMasw/w640-h360/Sugar%20Loaf%20(SN%20834%20427)%20-%20LIDAR%20hill%204.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Dorth Siwgr (SN 834 427)</td></tr></tbody></table><span style="font-family: "Georgia","serif"; font-size: 12pt;"><br /><div style="text-align: justify;"><span style="font-family: Georgia, "serif"; font-size: 12pt;">The criteria for the
list that this name change applies to are:</span></div><div style="text-align: justify;"><i style="mso-bidi-font-style: normal; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></i></div><div style="text-align: justify;"><i style="mso-bidi-font-style: normal; text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">Y Trichant
– The 300m Hills of Wales </span></i><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">– Welsh
hills at or above 300m and below 400m in height that have 30m minimum drop, </span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with an accompanying sub list entitled the
Sub-Trichant, with the criteria for this sub category being all Welsh hills at
or above 300m and below 400m in height with 20m or more and below 30m of
drop.<span style="mso-spacerun: yes;"> </span></span><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The list is authored by Myrddyn Phillips with the
<a href="https://mappingmountains.blogspot.com/2017/05/y-trichant-300m-hills-of-wales.html">Introduction to the list and the renaming of it appearing on Mapping Mountains
on the 13<sup>th</sup> May 2017</a>, and the <a href="https://mappingmountains.blogspot.com/2022/01/y-trichant-300m-hills-of-wales.html">Introduction to the Mapping Mountains
publication of the list appearing on the 1<sup>st</sup> January 2022</a>.</span><i style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOZ-XJcKC_K_J3Jg-v9mEZ6yBVOMzJXU5laGZG2hQq4aLU-d_PMDopfkpovGQobO9IK0Q72l08jS8dWBQKTx0qVpIyFKNnkFeJU9FSJ-BPvL1xYWNzO1tck-5Pof_pVstVza_QlF8jKaXjpe3xaUiH5JntugYzd2rytALQadFZLwBx-Ur96-vT6HZqQuk/s719/Y%20Trichant%20-%20Cover%20with%20border.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="719" data-original-width="523" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOZ-XJcKC_K_J3Jg-v9mEZ6yBVOMzJXU5laGZG2hQq4aLU-d_PMDopfkpovGQobO9IK0Q72l08jS8dWBQKTx0qVpIyFKNnkFeJU9FSJ-BPvL1xYWNzO1tck-5Pof_pVstVza_QlF8jKaXjpe3xaUiH5JntugYzd2rytALQadFZLwBx-Ur96-vT6HZqQuk/w291-h400/Y%20Trichant%20-%20Cover%20with%20border.jpg" width="291" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Y Trichant - The 300m Hills of Wales by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The hill is adjoined to the Mynydd Epynt group of
hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned with the A483 road to its
north-west and a minor road to its south, and has the town of Llanymddyfri
(Llandovery) towards the south-west.</span></span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3MZolwNlO315j0YjLrrVIW0Sj80qpVfzbeZkrdGaIYT2GlNPLGhx9p0J-ZLtbM6snny7znS3JOVxd6HyFQ3fntbe4-S1m2znK3dZp9WjTbUgMymul3u_bDYQl0IU2Bzdhr_L3FYBMxCAnHtsVOl5gJsaSBkUSFyJmKPfRJYJYtk96OGp5wDsqLtjWdd4/s1009/Sugar%20Loaf%20(SN%20834%20427)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="591" data-original-width="1009" height="374" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3MZolwNlO315j0YjLrrVIW0Sj80qpVfzbeZkrdGaIYT2GlNPLGhx9p0J-ZLtbM6snny7znS3JOVxd6HyFQ3fntbe4-S1m2znK3dZp9WjTbUgMymul3u_bDYQl0IU2Bzdhr_L3FYBMxCAnHtsVOl5gJsaSBkUSFyJmKPfRJYJYtk96OGp5wDsqLtjWdd4/w640-h374/Sugar%20Loaf%20(SN%20834%20427)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">The hill appeared in the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0300-0399.htm">300m height band of Welsh P30 hills published on Geoff Crowder’s v-g.me website</a>, under the transposed name of <i style="mso-bidi-font-style: normal;">Sugar Loaf, </i>which is the name given the hill on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /></span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"><br /></span></span></div><table class="InnerTable" style="background-color: #250e00; border-collapse: collapse; color: #ffffcc; font-family: Arial, Helvetica, serif; font-size: 15.2px;"><tbody><tr><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">Sugar Loaf</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">320c</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;"><a href="http://www.streetmap.co.uk/newmap.srf?x=283400&y=242700&z=0&st=3&mapp=newmap.srf&searchp=newsearch.srf" style="color: #ffcc99; text-decoration-line: none;" target="_blank" title="StreetMap 1:50000 map">SN834427</a></td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">147/160</td><td style="border: 1px solid rgb(102, 51, 0); padding: 1px 3px; white-space: nowrap;">187</td></tr></tbody></table><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">Since the original publication of the Welsh P30
lists on Geoff Crowder’s v-g.me website the access to a large number of
documents, both historical and contemporary is now available via online sources
on the internet. One of these is the
transcript from Wyn W. <i>Sir Gaerfyrddin.
Ye Brython Cymreig, Saturday, Gorphenaf 8</i> published in 1898. This confirms the use of the Welsh name with the
literal translation now appearing on contemporary Ordnance Survey maps as the English
name.</span><span style="font-size: 12pt;"> </span></div></span><p></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI3ufPx_3qvAoFn-58pAv-DbZJmkVB1n-x0Xqtszpf1CkmpBm7l5QR-yEiNVC2d_rKh0_my9OhzeiQskV9GKR6q4ANZipjmrTwWWp4TsLVtOPJLHX_hmXWRVMkbNOMKF62afmI-8YWKyWmLTbSde94kyy3XsX2W0s3ifkC_VxIbLqWOxJSqaWLy5epbBg/s574/Dorth%20Siwgr%20(SN%20834%20427)%20-%20newspaper%20article%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="350" data-original-width="574" height="390" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI3ufPx_3qvAoFn-58pAv-DbZJmkVB1n-x0Xqtszpf1CkmpBm7l5QR-yEiNVC2d_rKh0_my9OhzeiQskV9GKR6q4ANZipjmrTwWWp4TsLVtOPJLHX_hmXWRVMkbNOMKF62afmI-8YWKyWmLTbSde94kyy3XsX2W0s3ifkC_VxIbLqWOxJSqaWLy5epbBg/w640-h390/Dorth%20Siwgr%20(SN%20834%20427)%20-%20newspaper%20article%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from Wyn W. <i>Sir Gaerfyrddin. Ye Brython Cymreig, Saturday, Gorphenaf 8</i> published in 1898</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The intricacies of language and prioritising one
in favour of another for listing a hill is fraught with complication, with
originating Cymraeg names being anglicised and also originating English names
being cymricised, examples such as these are more common in border country and
especially so for anglicised forms. There
is no steadfast rule that fits all, but as a standard a name that has its
origins in the Welsh language and where this is substantiated by either
historic documentation and/or contemporary usage should be prioritised in
favour of a contemporary anglicised or English version of the name. Likewise, if a name exists where an element
of it is in English and if this name applies to a hill that is situated in a
Welsh speaking part of Wales it is standard practice to use a full Welsh term
for the name. It is also standard
practice to use a Welsh name for a hill if another name exists that has
originated in a different language.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">Therefore, the name this hill is
now listed by in the <i>Y </i></span><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Trichant – The 300m
Hills of Wales </span></i><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;">i</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-bidi-font-style: italic; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">s Dorth Siwgr an</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">d this was derived </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Wyn W. <i style="mso-bidi-font-style: normal;">Sir Gaerfyrddin.
Ye Brython Cymreig, Saturday, Gorphenaf 8</i> published in 1898, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;">with the prioritised language protocol being used.</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Epynt</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Dorth Siwgr</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Previously Listed
Name:<span style="mso-spacerun: yes;"> </span>Sugar Loaf</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>147,
160<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>325.6m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83481 42793 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>295.2m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 83703 42851 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>30.4m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt; text-align: center;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">My thanks to Aled
Williams for advising me in relation to the listed name of this hill</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips
(February 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; color: red; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0tag:blogger.com,1999:blog-5953799252258289641.post-84075332525774498842024-02-25T07:00:00.021+00:002024-02-25T08:52:56.621+00:00Mapping Mountains – Summit Relocations – 100m Twmpau<p> </p><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: Georgia, "serif"; font-size: 14pt;">Crug Cwm (SN 612 257)</span><span style="font-family: Georgia, "serif"; font-size: 14pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";">There has been a Summit Relocation to a hill that
is listed in the <i style="mso-bidi-font-style: normal;">100m Twmpau</i>, with
the summit height, bwlch height and their locations, the drop and status of the
hill derived from </span><span style="font-family: "Georgia","serif"; font-size: 12pt;">detail
produced by <a href="https://mappingmountains.blogspot.com/2020/04/lidar-analysis-joe-nuttall.html">Joe Nuttall</a> in his surface analysis programme, with subsequent
<a href="https://mappingmountains.blogspot.com/2016/11/lidar-data-introduction.html">LIDAR</a> analysis conducted by the DoBIH team and independently by Myrddyn
Phillips.</span><span style="background-color: white; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4VbEWbdNIpEetvdc3nYioeI3PzN1zeSUhVnHO9I83O4PCECfCrukQ2fzoJBBgC3FPoA8KMsioM3KPqDx9m8OYez_Z1cU2jaUAlEpToH_Uh9RZWEaRiHZC-4Ktluqw1YkKW7lAVbeF4jdwFFZ3qFENM_kq3f3ydRHf3mb0FcIwGUjGkDCo9vfWGF9k6zk/s922/Crug%20Cwm%20(SN%20612%20257)%20-%20LIDAR%20hill%202.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="599" data-original-width="922" height="416" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4VbEWbdNIpEetvdc3nYioeI3PzN1zeSUhVnHO9I83O4PCECfCrukQ2fzoJBBgC3FPoA8KMsioM3KPqDx9m8OYez_Z1cU2jaUAlEpToH_Uh9RZWEaRiHZC-4Ktluqw1YkKW7lAVbeF4jdwFFZ3qFENM_kq3f3ydRHf3mb0FcIwGUjGkDCo9vfWGF9k6zk/w640-h416/Crug%20Cwm%20(SN%20612%20257)%20-%20LIDAR%20hill%202.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR image of Crug Cwm (SN 612 257)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The criteria for the list that this summit
relocation applies to are:</span></span></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;"><br /></span></i></div><div style="text-align: justify;"><i style="background-color: transparent; mso-bidi-font-style: normal; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB;">100m Twmpau</span></i><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Times New Roman"; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-GB; text-align: justify;"> - Welsh hills at or above 100m and below 200m in height that have 30m
minimum drop, with an accompanying sub list entitled the 100m Sub-Twmpau, with
the criteria for this sub category being all Welsh hills at or above 100m and
below 200m in height with 20m or more and below 30m of drop, with the word Twmpau
being an acronym standing for <b style="mso-bidi-font-weight: normal;">t</b>hirty
<b style="mso-bidi-font-weight: normal;">w</b>elsh <b style="mso-bidi-font-weight: normal;">m</b>etre <b style="mso-bidi-font-weight: normal;">p</b>rominences <b style="mso-bidi-font-weight: normal;">a</b>nd <b style="mso-bidi-font-weight: normal;">u</b>pward.</span><i style="background-color: transparent; text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></i></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnBrZpsFE-Ju80dv0kpLq9vxzVyaikQjToqCXL6fINteuMiAw3bWhh34tKpdWAVnAHbsNUurTDLHOqg_MgQslCwanaxmf0Fuv8cJ7VcRcWI_nmubrOrQJgOVm17hxJ7otmolGBJOcLtS_Ct7S992mZuuh4YMyvcHuDcqcvONy6ZUk14I5UBCqNNM9tDjI/s657/100m%20Twmpau%20-%20with%20borderA.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="657" data-original-width="463" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnBrZpsFE-Ju80dv0kpLq9vxzVyaikQjToqCXL6fINteuMiAw3bWhh34tKpdWAVnAHbsNUurTDLHOqg_MgQslCwanaxmf0Fuv8cJ7VcRcWI_nmubrOrQJgOVm17hxJ7otmolGBJOcLtS_Ct7S992mZuuh4YMyvcHuDcqcvONy6ZUk14I5UBCqNNM9tDjI/w283-h400/100m%20Twmpau%20-%20with%20borderA.jpg" width="283" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">100m Twmpau by Myrddyn Phillips</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">The name the hill is now listed by is Craig Cwm and
this was derived from the Tithe map, and it is adjoined to the Mynydd Mallaen
group of hills, </span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">which are situated in the central
part of South Wales (Region B, Sub-Region B1), and</span><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;"> it is positioned encircled by minor roads, with
the A40 road farther to its south and the B4302 road farther to its east, and
has the town of Llandeilo towards the south south-east.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">When the original <a href="https://v-g.me.uk/Hill-Lists/Hill-Lists-MP0100-0199.htm">Welsh 100m P30 list was published on Geoff Crowder’s v-g.me website</a>, this hill was listed with a
non-interpolated c 190m summit height positioned at SN 61434 26099, based on
the largest of four uppermost 190m ring contours which appears on the
contemporary Ordnance Survey 1:25,000 Explorer map.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWsbe38ewibyIJS3v7EfJf889nVNqDH_Lg9DVmWhOfiBCoYIkvsFJiKOFFxddqqzPKjWrxHF-ihcZAqzbqZgkZcIZEBgIi3w0y4EaTjBNsmUyl_WxOVa5pjXUMhLTn32j352uxyUbypHV-l_Zv2i7hmTdGJ9U7MLkg3_-29OOOIVpEW3zFIdcn34JeA-8/s1000/Crug%20Cwm%20(SN%20612%20257)%20-%201%2025000.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="597" data-original-width="1000" height="382" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWsbe38ewibyIJS3v7EfJf889nVNqDH_Lg9DVmWhOfiBCoYIkvsFJiKOFFxddqqzPKjWrxHF-ihcZAqzbqZgkZcIZEBgIi3w0y4EaTjBNsmUyl_WxOVa5pjXUMhLTn32j352uxyUbypHV-l_Zv2i7hmTdGJ9U7MLkg3_-29OOOIVpEW3zFIdcn34JeA-8/w640-h382/Crug%20Cwm%20(SN%20612%20257)%20-%201%2025000.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Extract from the Ordnance Survey 1:25,000 Explorer map</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">After the sub list was standardised, and
interpolated heights and drop values also included the details for this hill
were re-evaluated and it was listed with an estimated c 34m of drop, based on
an estimated c 193m summit height positioned at SN 61434 26099, with the next
largest 190m ring contour estimated as c 192m positioned at SN 61257 25745, and
an estimated c 159m bwlch height, based on interpolation of 10m contouring
between 150m – 160m.</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed.<span style="mso-spacerun: yes;"> </span>The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"></span></p><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8UBQTjs2XoKM5nlzqRXaOMM0cee7LYCDXrld04UdbqRZmbSAj9R3S507E22aA6Io-51nHOADWHR2R2ACb2EEX7utSWvH6VjHeH0-eVuSewFBEb2_mOMEh_d2Bk4BBQPDUgmavcea5bzSexpTZA-1AcvnOyBI-PFd8p0F5NHqQ6pg0csO7aNHUEMzijmQ/s1243/Crug%20Cwm%20(SN%20612%20257)%20-%20LIDAR%20summit%201.jpg" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="702" data-original-width="1243" height="362" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8UBQTjs2XoKM5nlzqRXaOMM0cee7LYCDXrld04UdbqRZmbSAj9R3S507E22aA6Io-51nHOADWHR2R2ACb2EEX7utSWvH6VjHeH0-eVuSewFBEb2_mOMEh_d2Bk4BBQPDUgmavcea5bzSexpTZA-1AcvnOyBI-PFd8p0F5NHqQ6pg0csO7aNHUEMzijmQ/w640-h362/Crug%20Cwm%20(SN%20612%20257)%20-%20LIDAR%20summit%201.jpg" width="640" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">LIDAR summit image of Crug Cwm (SN 612 257)</td></tr></tbody></table><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><br /><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI";"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-size: 12pt;">LIDAR analysis gives the highest ground on this
hill as 192.8m positioned at SN 61260 25753, as opposed to 191.4m to the
previously listed summit positioned at SN 61430 26107 and SN 61432 26105, and
this comes within </span><span style="background-color: transparent; font-size: 12pt;">the
parameters of the Summit Relocations used within this page heading, these
parameters are:</span></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">The term Summit Relocations applies when the high
point of the hill is found to be positioned; in a different field, to a
different feature such as in a conifer plantation,<span style="mso-spacerun: yes;"> </span>within a different map contour, to a different
point where a number of potential summit positions are within close proximity,
when natural ground or the natural and intact summit of a hill is confirmed
compared to a higher point such as a raised field boundary or covered reservoir
that is judged to be a relatively recent man-made construct, or a relocation of
approximately 100 metres or more in distance from either the position of a map
spot height or from where the summit of the hill was previously thought to
exist.</span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;"><br /></span></div><div style="text-align: justify;"><span style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; font-family: "Georgia","serif"; font-size: 12pt; mso-bidi-font-family: "Segoe UI"; text-align: justify;">Therefore, the height produced by LIDAR analysis to
the summit of this hill is 192.8m and is positioned at SN 61260 25753, </span><span style="background-color: transparent; font-family: "Georgia","serif"; font-size: 12pt; text-align: justify;">this position is not
given a spot height on the contemporary Ordnance Survey 1:50,000 Landranger and
1:25,000 Explorer map, and is approximately 350 metres south-westward from
where the previously listed summit is positioned.</span><span style="background-color: transparent; font-family: Georgia, "serif"; font-size: 12pt; text-align: justify;"> </span></div></span><p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><span style="mso-spacerun: yes;"> </span><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">The full details for the
hill are:</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Group:<span style="mso-spacerun: yes;"> </span>Mynydd Mallaen</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Name:<span style="mso-spacerun: yes;"> </span>Crug Cwm</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";">OS 1:50,000 map:<span style="mso-spacerun: yes;"> </span>146<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Height:<span style="mso-spacerun: yes;"> </span>192.8m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Summit Grid Reference
(New Position):<span style="mso-spacerun: yes;"> </span>SN 61260 25753 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Height:<span style="mso-spacerun: yes;"> </span>159.0m (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Bwlch Grid
Reference:<span style="mso-spacerun: yes;"> </span>SN 63103 27207 (LIDAR)</span><span style="font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Drop:<span style="mso-spacerun: yes;"> </span>33.8m (LIDAR)</span><span style="color: red; font-family: Georgia, "serif"; font-size: 12pt;"> </span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: normal; margin-bottom: 0cm; mso-layout-grid-align: none; text-align: justify; text-autospace: none;"><span style="font-family: "Georgia","serif"; font-size: 12pt;">Myrddyn Phillips
(February 2024)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align: justify;"><span style="background: white; font-family: "Georgia","serif"; font-size: 12pt; line-height: 115%; mso-bidi-font-family: "Segoe UI";"><o:p> </o:p></span></p>Myrddynhttp://www.blogger.com/profile/08577197831384250538noreply@blogger.com0