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

 

Banc Garreg Winau (SN 562 414) 

There has been a Significant Name Change to a hill that is listed in the Y Trichant – The 300m Hills of Wales, 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: 

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 13^th May 2017, and the Introduction to the Mapping Mountains publication of the list appearing on the 1^st January 2022. 

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

The hill is adjoined to the Mynydd Pencarreg group of hills, which are situated in the south-western part of South Wales (Region B, Sub-Region B1), and it is positioned with a minor road to its east and the B4337 road to its south-west, and has the town of Llanybydder towards the north-west. 

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

The hill appeared in the original Welsh 300m P30 list on Geoff Crowder’s v-g.me website, under the transposed name of Llwyndrissi, with an accompanying note stating; aka Banc Garregwinau.  With the prioritised name appearing near the summit of this hill on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.

Llwyndrissi

369m

SN562414

146

186

Included by contour configuration. aka Banc Garregwinau

 

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, and it is the Ordnance Survey series of Six-Inch maps that give the name of Banc Garreg Winau near the summit of this hill complimenting its position on the Ordnance Survey 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 is Banc Garreg Winau, and this was derived from the contemporary Ordnance Survey 1:25,000 Explorer map with the name placement substantiated by the Ordnance Survey series of Six-Inch maps. 

 

The full details for the hill are: 

Group:  Mynydd Pencarreg 

Name:  Banc Garreg Winau 

Previously Listed Name:  Llwyndrissi 

OS 1:50,000 map:  146

Summit Height:  369m (spot height)                                                           

Summit Grid Reference:  SN 56242 41456 (hand-held GPS via DoBIH) 

Bwlch Height:  338m (spot height) 

Bwlch Grid Reference:  SN 56765 41224 (spot height) 

Drop:  31m (spot height summit and bwlch) 

 

Myrddyn Phillips (May 2022)