Tuesday, 6 May 2025

Mapping Mountains – Significant Name Changes – The Welsh P15s

 

Coed y Ringoed (SO 359 051) 

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 Coed y Ringoed (SO 359 051)

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 10th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ysgyryd Fawr group of hills, which are situated in the south-eastern part of South Wales (Region B, Sub-Region B4), and it is positioned with minor roadr to its north-west and east, and the B4598 road to its south-west, and has the town of Brynbuga (Usk) towards the south south-east.

When the listing that became known as The Welsh P15s was being compiled, this hill was included in the main list under the point (Pt. 101m) notation with an estimated c 15m of drop, based on the 101m summit spot height positioned at SO 36022 05237 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 86m bwlch height, based on interpolation of 5m contouring between 85m – 90m. 

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

When the details for this hill were first listed they were taken from the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map, with the 101m spot height positioned at SO 36022 05237.  As this position is not part of the wood named as Coed y Ringoed, the point notation was used for the listed name of this hill.  However, due to LIDAR analysis the summit has been relocated to within the wood.

Therefore, the name this hill is now listed by in The Welsh P15s is Coed y Ringoed and this was derived from the contemporary Ordnance Survey 1:25,000 Explorer map. 

 

The full details for the hill are: 

Group:  Ysgyryd Fawr 

Name:  Coed y Ringoed

Previously Listed Name:  Pt. 101m 

OS 1:50,000 map:  161

Summit Height:  101.8m (LIDAR)                                                           

Summit Grid Reference:  SO 35923 05142 (LIDAR)                                                  

Bwlch Height:  86.1m (LIDAR) 

Bwlch Grid Reference:  SO 36156 05372 & SO 36159 05368 (LIDAR) 

Drop:  15.7m (LIDAR) 

 

Myrddyn Phillips (May 2025) 

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