Friday 29 April 2022

Mapping Mountains – Significant Name Changes – Y Trichant – The 300m Hills of Wales and Y Trechol – The Dominant Hills of Wales


Yr Aran (SJ 174 260) 

There has been a Significant Name Change to a hill that is listed in the Y Trichant – The 300m Hills of Wales and Y Trechol – The Dominant Hills of Wales, with the summit height, bwlch height and their locations, the drop, dominance and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

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

Y Trichant – The 300m Hills of Wales – Welsh hills at or above 300m and below 400m in height that have 30m minimum drop, 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.  The list is authored by Myrddyn Phillips with the Introduction to the list and the renaming of it appearing on Mapping Mountains on the 13th May 2017, and the Introduction to the Mapping Mountains publication of the list appearing on the 1st January 2022. 

Y Trichant - The 300m Hills of Wales by Myrddyn Phillips

Y Trechol – The Dominant Hills of Wales – Welsh P30 hills whose prominence equal or exceed half that of their absolute height.  With the criteria for Lesser Dominant status being those additional Welsh P30 hills whose prominence is between one third and half that of their absolute height.  The list is authored by Myrddyn Phillips with the Introduction to the start of the Mapping Mountains publication of this list appearing on the 3rd December 2015, and the list is now available in its entirety on Mapping Mountains in Google Doc format. 

Y Trechol - The Dominant Hills of Wales by Myrddyn Phillips

The hill is adjoined to the Craig Berwyn group of hills, which are situated in the eastern part of North Wales (Region A, Sub-Region A3), and it is positioned with the B4580 road to its north, minor roads to its west and east and the B4396 road to its south, and has the village of Llangedwyn towards the south-east.

The hill appeared in the original Welsh 300m P30 list on Geoff Crowder’s v-g.me website, under the name of Mynydd-y-briw; which is a prominent name that appears close to the summit of this hill on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.


Mynydd-y-briw341mSJ174260125239Marilyn. Clem/Yeaman.

 

During my early hill listing I paid little regard to name placement on the map, or the meaning of names and to what feature the name was appropriately applied to.  Therefore, I prioritised names for listing purposes that I now understand are either inappropriate or where another name is viewed as being more appropriate.  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. 

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

When compiling the Y Trechol – The Dominant Hills of Wales list I made place-name enquires regarding this hill with one of the local farmers; who was the father of a friend of an ex-girlfriend.  I was told by the local farmer that the hill is known as Yr Aran.

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.  One of the historic maps now available online is the Ordnance Survey Draft Surveyors map which formed the basis for the first publicly available Ordnance Survey One-Inch ‘Old Series’ map, and it is the Draft Surveyors map along with the Ordnance Survey Six-Inch map that substantiates the information the local farmer gave me.

The Draft Surveyors maps consist of the preliminary drawings made by the Ordnance Survey surveyors between the 1780s and 1840 and formed the basis for the first publicly available One-Inch map.  They were drawn at scales of six inches to the mile for areas considered of particular military significance and down to two inches to the mile for other areas.  Fair copies were then produced from these preliminary drawings to one inch to the mile and then copper plates were prepared for printing.  The Draft Surveyors maps for the whole of Wales are now available online and they form an important part in the study of Welsh upland place-names as they bridge the time frame between the late 18th century and the mid-19th century when the Ordnance Survey produced their first One-Inch maps, and importantly for this hill and its listed name, it is this map that names the hill as Yr Aran. 

Extract from the Ordnance Survey Draft Surveyors map

The Ordnance Survey series of Six-Inch maps formed the base map Ordnance Survey used for many decades leading to the production of the 1:10,000 Series of maps, both have now been superseded by the digitised Master Map.  The series of Six-Inch maps are excellent for name placement and especially so compared to the contemporary Ordnance Survey 1:25,000 Explorer map, and it is the series of Six-Inch maps that name this hill as Aran, with the definite article Yr not given.  The detail given on the Ordnance Survey series of Six-Inch maps is also reproduced on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map. 

Extract from the Ordnance Survey series of Six-Inch maps

Therefore, the name this hill is now listed by in the Y Trichant – The 300m Hills of Wales and Y Trechol – The Dominant Hills of Wales is Yr Aran, and this was derived from local enquiry and substantiated by the Ordnance Survey Draft Surveyors map and the Ordnance Survey series of Six-Inch maps, with the caveat of the retention of the definite article Yr as given by local enquiry. 

 

The full details for the hill are: 

Group:  Craig Berwyn 

Name:  Yr Aran 

Previously Listed Name:  Mynydd-y-briw 

OS 1:50,000 map:  125

Summit Height:  341m (spot height)                                                           

Summit Grid Reference:  SJ 17404 26074 (hand-held GPS via DoBIH) 

Bwlch Height:  c 181m (interpolation) 

Bwlch Grid Reference:  SJ 17597 26834 (interpolation) 

Drop:  c 160m (spot height summit and interpolated bwlch) 

Dominance:  46.92% (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (April 2022)

 

 

  

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