Mapping Mountains - Significant Name Changes - The Welsh P15s

 The Welsh P15s – Significant Name Changes

The Welsh P15s are all Welsh hills that have a minimum of 15m of drop, irrespective of their height.  Accompanying the main P15 list is a sub list entitled; The Welsh Sub-P15s, with the qualification to this sub category being all Welsh hills with 14m or more and below 15m of drop.

The list is authored by Myrddyn Phillips and the posts that have appeared on Mapping Mountains detailing the significant name changes to the main P15 list and the sub list that are below P20 and therefore documented in other lists, appear below presented chronologically in receding order.

Mapping Mountains - Significant Name Changes - The Welsh P15s

Comin Gwauncaegurwen (SN 711 123) - 90th significant name change

Hill Reclassifications post for Comin Gwauncaegurwen

Significant Height Revisions post for Comin Gwauncaegurwen

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Comin Gwauncaegurwen (SN 711 123)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Mynydd Du group of hills, which are situated in the southern part of South Wales (Region B, Sub-Region B5), and it is positioned with the A4068 road to its north-east, the A4069 road to its north-west and a minor road to its south, and has the village of Brynaman towards the north.

When the listing that became known as The Welsh P15s was being compiled, this hill was not included in the main P15 list or the accompanying P14 sub list, as it possessed no contours of significance on either the Ordnance Survey 1:50,000 Landranger or the 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

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.

LIDAR analysis gives the highest ground on this hill as 216.6m, and with a 196.6m bwlch height, these values give this hill 19.98m of drop, which is sufficient for it to be classified as a Welsh P15.

As the summit of this hill used to comprise bounded land the details for it were examined on the Tithe map.  The 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.

The enclosed land where the summit of this hill is situated is given the number 195 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 Gwauncaegurwen Common on the Tithe map and in the apportionments, with the details on the Tithe map appearing in the parish of Llan-giwg and in the county named as Glamorgan. 

Extract from the Tithe map

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.

Therefore, the name this hill is now listed by in The Welsh P15s is Comin Gwauncaegurwen and this was derived from the Tithe map with the prioritised language protocol being used. 

 

The full details for the hill are: 

Group:  Mynydd Du 

Name:  Comin Gawuncaegurwen 

Previously Listed Name:  unclassified 

OS 1:50,000 map:  160

Summit Height:  216.6 (LIDAR)                                                           

Summit Grid Reference:  SN 71158 12343 (LIDAR) 

Bwlch Height:  196.6m (LIDAR) 

Bwlch Grid Reference:  SN 71330 12592 & SN 71332 12592 (LIDAR) 

Drop:  19.98m (LIDAR) 

 

Myrddyn Phillips (April 2024)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Y Garreg Las (SN 768 098) - 89th significant name change

Hill Reclassifications post for Y Garreg Las

Summit Relocations post for Y Garreg Las

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Y Garreg Las (SN 768 098)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Mynydd Du group of hills, which are situated in the southern part of South Wales (Region B, Sub-Region B5), and it is positioned with a minor road to its immediate north-east, and west, the A4068 road farther to its north-east and the A4067 road to its south-east, and has the community of Y Gurnos towards the east south-east. 

Extract from the Ordnance Survey 1:25,000 Explorer map

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 157m) notation and included in the P14 sub list with an estimated c 14m of drop, based on the 157m summit spot height positioned at SN 76897 09754 that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 143m bwlch height, based on interpolation of 5m contouring between 140m – 145m that appeared on the OS Maps website.  Latterly the interactive mapping hosted on the WalkLakes website gives this hill a 158m summit spot height. 

Extract from the interactive mapping hosted on the WalkLakes website

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 1829 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 Y Garreg Las in the apportionments, with the details on the Tithe map appearing in the parish of Llan-giwg and in the county named as Glamorgan. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Y Garreg Las and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Mynydd Du 

Name:  Y Garreg Las

Previously Listed Name:  Pt. 157m 

OS 1:50,000 map:  160

Summit Height:  158.5m (LIDAR)                                                           

Summit Grid Reference:  SN 76803 09804 (LIDAR) 

Bwlch Height:  141.7m (LIDAR) 

Bwlch Grid Reference:  SN 76797 09723 (LIDAR) 

Drop:  16.75m (LIDAR) 

 

My thanks to Aled Williams for advice relating to the listed name of this hill

Myrddyn Phillips (April 2024)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tyn Ffynnon (SN 549 487) - 88th significant name change

Hill Reclassifications post for Tyn Ffynnon

Summit Relocations post for Tyn Ffynnon

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Tyn Ffynnon (SN 549 487)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Mynydd Bach group of hills, which are situated in the western part of South Wales (Region B, Sub-Region B1), and it is positioned encircled by minor roads, with the B4337 road farther to its west, the A475 road farther to its south and the A482 road farther to its east, and has the town of Llanbedr Pont Steffan (Lampeter) towards the east south-east.

When the original 200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website, this hill was included in the accompanying sub list and listed under the invented and transposed name of Allt Ty-llwyd, with an accompanying note stating; Name from buildings to the South-East.

Allt Ty-llwyd

224m

SN550487

146

199

Name from buildings to the South-East.

 

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 Pen, Bryn or Moel in front of them or as in this instance transpose the name of a farm and add the word Allt 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. 

When the sub list was standardised, and interpolated heights and drop values also included the details for this hill were re-evaluated and the summit of the qualifying hill relocated to SN 564 484. 

Subsequently, when the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 224m) notation with an estimated c 16m of drop, based on the 224m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger map and 1:25,000 Explorer map and an estimated c 208m bwlch height, based on interpolation of 5m contouring between 205m - 210m that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 489 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 Tyn Ffynnon in the apportionments, with the details on the Tithe map appearing in the parish of Llanbedr Pont Steffan and in the county named as Cardigan. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tyn Ffynnon and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Mynydd Bach 

Name:  Tyn Ffynnon

Previously Listed Name:  Pt. 224m (previously Allt Ty-llwyd) 

OS 1:50,000 map:  146

Summit Height:  224.3m (LIDAR)                                                           

Summit Grid Reference:  SN 54956 48738 (LIDAR) 

Bwlch Height:  210.0m (LIDAR) 

Bwlch Grid Reference:  SN 55631 48720 (LIDAR) 

Drop:  14.3m (LIDAR) 

 

Myrddyn Phillips (December 2022)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Craignant Hill (SJ 118 164) - 87th significant name change

Survey post for Craignant Hill

Hill Reclassifications post for Craignant Hill

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. 

Craignant Hill (SJ 118 164)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Foel Cedig group of hills, which are situated in the southern part of North Wales (Region A, Sub-Region A3), and it is positioned encircled by minor roads, with the B4393 road farther to its north-west, the B4382 road farther to its west, the A495 road farther to its south-east and the A490 road farther to its north-east, and has the town of Llanfyllin towards the north-east.

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 329m) notation with an estimated c 14m of drop, based on the 329m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 315m bwlch height based on interpolation of 10m contouring that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

When visiting this hill I met the local farmer; John Evans, who farms from Tyncelyn which is situated towards the south-west of the hill.  John farms the land this hill is a part of and when I met him he was shepherding sheep up the lane to their field.  Once the sheep were penned in we talked about the hill that was adjacent to us.  John explained that although he now farms this land the hill is still known as Craignant Hill, through its past association with Craignant-mawr; a farm to the immediate north of the hill.  I asked John if its adjacent hill positioned at SJ 119 165 and which is given twin top map status with summits of 329m and which the Trimble GeoXH 6000 survey confirmed as higher with a summit height of 329.5m had a separate name, he said no, both hills are known by the same name; Craignant Hill. 

John Evans on the right with Aled Watkins

Therefore, the name this hill is now listed by in The Welsh P15s is Craignant Hill and this was derived from local enquiry. 

 

The full details for the hill are: 

Group:  Foel Cedig 

Name:  Craignant Hill

Previously Listed Name:  Pt. 329m 

OS 1:50,000 map:  125

Summit Height:  329.3m (converted to OSGM15)                                                           

Summit Grid Reference:  SJ 11893 16416 

Bwlch Height:  311.4m (converted to OSGM15) 

Bwlch Grid Reference:  SJ 11967 16505 

Drop:  18.0m 

 

Myrddyn Phillips (August 2022)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tŷ Croes (SH 785 187) - 86th significant name change

Survey post for Tŷ Croes

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from a Trimble GeoXH 6000 survey and subsequent LIDAR analysis conducted by Myrddyn Phillips. 

Tŷ Croes (SH 785 187)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Aran Fawddwy group of hills, which are situated in the south-western part of North Wales (Region A, Sub-Region A3), and it is positioned with a minor road to its north, the B4416 road to its west and the A470 road to its south, and has the small community of Brithdir towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 307m) notation with 18m of drop, based on the 307m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 289m 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. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 26 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 Tŷ Croes in the apportionments, with the details on the Tithe map appearing in the parish of Dolgellau and in the county named as Merioneth. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tŷ Croes and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Aran Fawddwy 

Name:  Tŷ Croes

Previously Listed Name:  Pt. 307m 

OS 1:50,000 map:  124

Summit Height:  306.6m (converted to OSGM15, Trimble GeoXH 6000) 

Summit Grid Reference:  SH 78563 18733 (Trimble GeoXH 6000) 

Bwlch Height:  288.95m (LIDAR) 

Bwlch Grid Reference:  SH 78671 18487 (LIDAR) 

Drop:  17.7m (Trimble GeoXH 6000 summit and LIDAR bwlch) 

 

Myrddyn Phillips (January 2022)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Sheep Pasture (SN 935 821) - 85th significant name change

Survey post for Sheep Pasture 

Hill Rclassifications post for Sheep Pasture

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis and a subsequent Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. 

Sheep Pasture (SN 935 821)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Pumlumon group of hills, which are situated in the north-western part of Mid and West Wales (Region B, Sub-Region B2), and it is positioned with a minor road to its north-west and the A470 road to its south-east, and has the town of Llanidloes towards the north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 356m) notation with an estimated c 21m of drop, based on the 356m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map and an estimated c 335m bwlch height based on interpolation of 10m contouring between 330m – 340m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 1054 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 Sheep Pasture in the apportionments, with the details on the Tithe map appearing in the parish of Llangurig and in the county named as Montgomery. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Sheep Pasture and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Pumlumon 

Name:  Sheet Pasture

Previously Listed Name:  Pt. 356m 

OS 1:50,000 map:  136

Summit Height:  355.3m (converted to OSGM15, Trimble GeoXH 6000) 

Summit Grid Reference:  SN 93587 82145 (Trimble GeoXH 6000) 

Bwlch Height:  336.4m (LIDAR) 

Bwlch Grid Reference:  SN 93150 82163 (LIDAR) 

Drop:  18.9m (Trimble GeoXH 6000 summit and LIDAR bwlch) 

 

Myrddyn Phillips (November 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Cerrig Engan (SH 405 734) - 84th significant name change

Hill Reclassifications post for Cerrig Engan

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Cerrig Engan (SH 405 734)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, minor roads to its north-east, west and south, the A55 and A5 roads farther to its north and the B4422 road farther to its south-east, and has the town of Llangefni towards the east north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was not included in either the main P15 list or the accompanying P14 sub list, but it was documented under the point (Pt c 70m) notation with an estimated c 13m of drop, based on an estimated c 70m summit height and an estimated c 57m bwlch height, with both heights based on interpolation of 5m contouring that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 84 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 Cerrig Engan in the apportionments, with the details on the Tithe map appearing in the parish of Aberffraw and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is listed by in The Welsh P15s is Cerrig Engan and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Cerrig Engan

Previously Listed Name:  Pt. c 70m 

OS 1:50,000 map:  114, 115

Summit Height:  69.4m (LIDAR)                                                           

Summit Grid Reference:  SH 40529 73455 (LIDAR) 

Bwlch Height:  54.4m (LIDAR) 

Bwlch Grid Reference:  SH 40431 73497 (LIDAR) 

Drop:  15.0m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Caer Helen (SH 325 780) - 83rd significant name change

Hill Reclassifications post for Caer Helen

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Caer Helen (SH 325 780)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, the A5 and A55 roads to its north and minor roads to its west and south, and has the village of Llanfiangel-yn-Nhywyn towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was not included in either the main P15 list or the accompanying P14 sub list, but it was documented under the point (Pt. 34m) notation with an estimated c 13m of drop, based on the 34m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 21m bwlch height, based on interpolation of 5m contouring between 20m – 25m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

Since the initial compilation of this list there have been a number of Ordnance Survey 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 are current and digitally updated such as the mapping on the Magic Maps and WalkLakes websites. 

One of the mapping resources now available online is the Ordnance Survey series of Six-Inch maps via the National Library of Scotland website.  This mapping preceded the 1:10,000 base maps and has proven an excellent resource for name placement and is much better for this compared to the publicly available Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.  And it is the Six-Inch map that places the name of Caer Helen adjacent to the summit of this hill. 

Extract from the Ordnance Survey series of Six-Inch maps

Therefore, the name this hill is now listed by in The Welsh P15s is Caer Helen and this was derived from the Ordnance Survey series of Six-Inch maps. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Caer Helen

Previously Listed Name:  Pt. 34m 

OS 1:50,000 map:  114

Summit Height:  33.9m (LIDAR)                                                           

Summit Grid Reference:  SH 32589 78052 (LIDAR) 

Bwlch Height:  17.4m (LIDAR) 

Bwlch Grid Reference:  SH 32770 78215 (LIDAR) 

Drop:  16.5m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Frigan (SH 483 845) - 82nd significant name change

Hill Reclassifications post for Frigan

 

There has been a Significant Name Change to a hill that was listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Frigan (SH 483 845)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its east, minor roads to its north, west and south, and the A5025 road to its north-east, and has the village of Moelfre towards the north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 98m) notation with 14m of drop, based on the 98m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 84m 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. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 16 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 Frigan in the apportionments, with the details on the Tithe map appearing in the parish of Llaneugrad and in the county named as Anglesey.

Extract from the apportionments

Therefore, the name this hill was listed by in The Welsh P15s is Frigan and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Frigan

Previously Listed Name:  Pt. 98m 

OS 1:50,000 map:  114, 115

Summit Height:  97.8m (LIDAR)                                                           

Summit Grid Reference:  SH 48325 84509 (LIDAR) 

Bwlch Height:  86.3m (LIDAR) 

Bwlch Grid Reference:  SH 48653 84477 (LIDAR) 

Drop:  11.5m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tafarn y Botel (SH 404 838) - 81st significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with minor roads to its north, west and south-west and the B5112 road to its south-east, and has the small village of Llannerch-y-medd towards the east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 97m) notation with an estimated c 14m of drop, based on an estimated c 97m summit height and an estimated c 83m bwlch height, with both heights based on interpolation of 5m contouring that appear on the Ordnance Survey 1:25,000 Explorer map.  With the interactive mapping available on the Magic Maps website now showing a 97m summit spot height. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 19 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 Tafarn y Botel in the apportionments, with the details on the Tithe map appearing in the parish of Rhodogeidio and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tafarn y Botel and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Tafarn y Botel

Previously Listed Name:  Pt. c 97m 

OS 1:50,000 map:  114, 115

Summit Height:  97m (spot height) 

Summit Grid Reference:  SH 40454 83854 (spot height) 

Bwlch Height:  c 83m (interpolation) 

Bwlch Grid Reference:  SH 40240 83508 (interpolation) 

Drop:  c 14m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (October 2021)

 

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Chwaen Goch (SH 392 845) - 80th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Chwaen Goch (SH 392 845)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, a minor road in its immediate vicinity, the B5112 road to its south-east and the B5111 road to its east, and has the small village of Llannerch-y-medd towards the east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 94m) notation with 16m of drop, based on the 94m summit spot height and the 78m 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, with the 78m bwlch spot height also appearing on the Ordnance Survey 1:50,000 Landranger map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 30 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 Chwaen Goch in the apportionments, with the details on the Tithe map appearing in the parish of Llantrisaint and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Chwaen Goch and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Chwaen Goch

Previously Listed Name:  Pt. 94m 

OS 1:50,000 map:  114

Summit Height:  94.2m (LIDAR) 

Summit Grid Reference:  SH 39200 84545 (LIDAR) 

Bwlch Height:  78m (spot height) 

Bwlch Grid Reference:  SH 38742 83198 (spot height) 

Drop:  16m (LIDAR summit and spot height bwlch) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pant y Saer (SH 512 824) - 79th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pant y Saer (SH 512 824)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its east, the B5108 road to its north-west, a minor road to its south and the A5025 road to its east, and has the large village of Benllech towards the east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the name of Cytiau’r Gwyddelod with an estimated c 17m of drop, based on the 90m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 73m bwlch height, based on interpolation of 5m contouring between 70m – 75m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 115 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 Pant y Saer in the apportionments, with the details on the Tithe map appearing in the parish of Llanfair Mathafarn Eithaf and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pant y Saer and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pant y Saer

Previously Listed Name:  Cytiau’r Gwyddelod 

OS 1:50,000 map:  114, 115

Summit Height:  88.3m (LIDAR) 

Summit Grid Reference:  SH 51239 82400 (LIDAR) 

Bwlch Height:  c 73m (interpolation) 

Bwlch Grid Reference:  SH 51151 82380 (interpolation) 

Drop:  15m (LIDAR summit and interpolated bwlch) 

 

Myrddyn Phillips (October 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Melin Llanddyfnan (SH 483 786) - 78th significant name change

Hill Reclassifications post for Melin Llanddyfnan

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Ynys Llanddyfnan (SH 483 786)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north-east, a minor road to its immediate north-west and south, the B5110 road farther to its north-west and the B5109 road to its south-east, and has the town of Llangefni towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 86m) notation with an estimated c 13m of drop, based on an estimated c 86m summit height and an estimated c 73m bwlch height, with both heights based on interpolation of 5m contouring that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

The name of Melin Llanddyfnan is taken from online sources, of which there are a number, mainly based on the history of, and the relatively recent reconstruction of the windmill.  The boundary taking in land adjoined to Melin Llanddyfnan has also been substantiated by the Tithe map. 

Extract from the Ordnance Survey Six-Inch map hosted as a part of the Tithe map

Therefore, the name this hill is now listed by in The Welsh P15s is Melin Llanddyfnan and this was derived from online sources, with the boundary incorporating Melin Llanddyfnan substantiated via the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Melin Llanddyfnan

Previously Listed Name:  Pt. c 86m 

OS 1:50,000 map:  114, 115

Summit Height:  87.2m (LIDAR)                                                           

Summit Grid Reference:  SH 48371 78617 (LIDAR) 

Bwlch Height:  72.2m (LIDAR) 

Bwlch Grid Reference:  SH 48391 79121 (LIDAR) 

Drop:  14.9m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Cae Pellaf (SH 482 779) - 77th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Cae Pellaf (SH 482 779)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north-east, minor roads to its north and south-east, the B5110 road to its north-west and the B5109 road farther to its south-east, and has the town of Llangefni towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the name of Mountain Covert with an estimated c 16m of drop, based on an estimated c 88m summit height and an estimated c 72m bwlch height, with both heights based on interpolation of 5m contouring that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 243 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 Cae Pellaf in the apportionments, with the details on the Tithe map appearing in the parish of Llanddyfnan and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Cae Pellaf and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Cae Pellaf

Previously Listed Name:  Mountain Covert 

OS 1:50,000 map:  114, 115

Summit Height:  87.5m (LIDAR) 

Summit Grid Reference:  SH 48250 77931 (LIDAR) 

Bwlch Height:  71.7m (LIDAR) 

Bwlch Grid Reference:  SH 48415 78170 (LIDAR) 

Drop:  15.8m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Cefn Coch (SH 464 808) - 76th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Cefn Coch (SH 464 808)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north-east, minor roads to its west, south and east and the B5110 road farther to its east, and has the large village of Benllech towards the east north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 78m) notation with 15m of drop, based on the 78m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 63m 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. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 6 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 Cefn Coch in the apportionments, with the details on the Tithe map appearing in the parish of Tregaean and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Cefn Coch and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Cefn Coch

Previously Listed Name:  Pt. 78m 

OS 1:50,000 map:  114, 115

Summit Height:  78.7m (LIDAR) 

Summit Grid Reference:  SH 46418 80804 (LIDAR) 

Bwlch Height:  63.6m (LIDAR) 

Bwlch Grid Reference:  SH 47591 80714 (LIDAR) 

Drop:  15.1m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tre Ysgawen (SH 449 811) - 75th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Tre Ysgawen (SH 449 811)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north-east, a minor road to its north and east and the B5111 road to its west, and has the small village of Llannerch-y-medd towards the north-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 87m) notation with an estimated c 14m of drop, based on the 87m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 73m bwlch height, based on interpolation of 5m contouring between 70m - 75m that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 2 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 Tre Ysgawen in the apportionments, with the details on the Tithe map appearing in the parish of Llangwyllog and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tre Ysgawen and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Tre Ysgawen

Previously Listed Name:  Pt. 87m 

OS 1:50,000 map:  114, 115

Summit Height:  87.9m (LIDAR) 

Summit Grid Reference:  SH 44915 81128 (LIDAR) 

Bwlch Height:  73.5m (LIDAR) 

Bwlch Grid Reference:  SH 45342 81447 (LIDAR) 

Drop:  14.45m (LIDAR) 

 

Myrddyn Phillips (October 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pont y Cochyn (SH 446 846) - 74th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pont y Cochyn (SH 446 846)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north-east and is encircled by minor roads, with the A5025 road farther to its north-east and the B5111 road farther to its west, and has the small village of Llannerch-y-medd towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 77m) notation with an estimated c 19m of drop, based on the 77m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 58m bwlch height, based on interpolation of 5m contouring between 55m - 60m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 96 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 Pont y Cochyn in the apportionments, with the details on the Tithe map appearing in the parish of Llandyfrydog and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pont y Cochyn and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pont y Cochyn

Previously Listed Name:  Pt. 77m 

OS 1:50,000 map:  114, 115

Summit Height:  76.3m (LIDAR) 

Summit Grid Reference:  SH 44618 84607 & SH 44619 84609 & SH 44622 84606 & SH 44626 84611 & SH 44622 84611 (LIDAR) 

Bwlch Height:  c 58m (interpolation) 

Bwlch Grid Reference:  SH 44359 84106 (interpolation) 

Drop:  c 18m (LIDAR summit and interpolated bwlch) 

 

Myrddyn Phillips (October 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Plas Coedana (SH 418 820) - 73rd significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with minor roads to its west and east, the B5112 road farther to its north-west and the B5111 road farther to its east, and has the small village of Llannerch-y-medd towards the north. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 87m) notation with an estimated c 14m of drop, based on the 87m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 73m bwlch height, based on interpolation of 5m contouring between 70m - 75m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 4 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 Plas Coedana in the apportionments, with the details on the Tithe map appearing in the parish of Coedana and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Plas Coedana and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Plas Coedana

Previously Listed Name:  Pt. 87m 

OS 1:50,000 map:  114, 115

Summit Height:  87m (spot height) 

Summit Grid Reference:  SH 41802 82001 (spot height) 

Bwlch Height:  c 73m (interpolation) 

Bwlch Grid Reference:  SH 41954 82340 (interpolation) 

Drop:  c 14m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Castell Tre Gof (SH 414 742) - 72nd significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR bwlch image of Castell Tre Gof (summit at SH 414 742)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the A55 road to its north and a minor road to its immediate west, and has the town of Llangefni towards the east north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the name of Castell Bryn Twr, which is a name that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map, with an estimated c 16m of drop, based on the 73m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 57m bwlch height based on interpolation of 5m contouring between 55m – 60m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

Since the initial compilation of this list there have been a number of Ordnance Survey 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 are current and digitally updated such as the mapping on the Magic Maps and WalkLakes websites. 

One of the mapping resources now available online is the Ordnance Survey series of Six-Inch maps via the National Library of Scotland website.  This mapping preceded the 1:10,000 base maps and has proven an excellent resource for name placement and is much better for this compared to the publicly available Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.  And it is the Six-Inch map that places the name of Castell Tre Gof adjacent to the summit of this hill. 

Extract from the Ordnance Survey series of Six-Inch maps

Therefore, the name this hill is now listed by in The Welsh P15s is Castell Tre Gof and this was derived from the Ordnance Survey series of Six-Inch maps. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Castell Tre Gof

Previously Listed Name:  Castell Bryn Twr 

OS 1:50,000 map:  114, 115

Summit Height:  73m (spot height) 

Summit Grid Reference:  SH 41445 74256 (spot height) 

Bwlch Height:  56.2m (LIDAR) 

Bwlch Grid Reference:  SH 41795 75476 (LIDAR) 

Drop:  17m (spot height summit and LIDAR bwlch) 

 

Myrddyn Phillips (October 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Castell Eden (SH 396 761) - 71st significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Castell Eden (SH 396 761)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, the A5 road to its immediate north, a minor road to its immediate south and the A55 road farther to its south, and has the small village of Gwalchmai towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 81m) notation with an estimated c 14m of drop, based on the 81m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 67m bwlch height based on interpolation of 5m contouring between 65m – 70m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The 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. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 44 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 Castell Eden in the apportionments, with the details on the Tithe map appearing in the parish of Trewalchmai and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Castell Eden and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Castell Eden

Previously Listed Name:  Pt. 81m 

OS 1:50,000 map:  114

Summit Height:  80.6m (LIDAR) 

Summit Grid Reference:  SH 39623 76116 & SH 39624 76118 (LIDAR) 

Bwlch Height:  66.1m (LIDAR) 

Bwlch Grid Reference:  SH 41419 77419 (LIDAR) 

Drop:  14.5m (LIDAR) 

 

Myrddyn Phillips (October 2021)