Mapping Mountains – Significant Name Changes – 100m Twmpau

Warren Wood (SN 600 190)

There has been a Significant Name Change to a hill that is listed in the 100m Twmpau, with the summit height, drop and status of the hill being confirmed by LIDAR analysis conducted by Myrddyn Phillips.

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

100m Twmpau - Welsh hills at or above 100m and below 200m in height with 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 thirty welsh metre prominences and upward.

LIDAR image of Warren Wood

The hill is adjoined to the Mynydd Sylen group of hills, which are situated in the western part of South Wales (Region C, Sub-Region C1), and it is positioned with the B 4300 road to the north, the A 476 road to the east, and has the town of Llandeilo towards the north-east.

The hill appeared in the 100m P30 list on Geoff Crowder’s v-g.me website under the name of Warren Wood Top, with an accompanying note stating; Name from wood to the North.

Warren Wood Top

190c

SN600191

159

186

Name from wood to the North

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 when the name was English use the word Top or Hill after the name.  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.

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

Therefore, as an appropriate name for the hill already exists on contemporary Ordnance Survey maps this hill is now listed in the 100m Twmpau as Warren Wood.

The full details for the hill are:

Group:  Mynydd Sylen

Name:  Warren Wood

Previously Listed Name:  Warren Wood Top 

Summit Height:  189.4m (LIDAR)

OS 1:50,000 map:  159

Summit Grid Reference:  SN 60037 19085 (LIDAR) 

 

Drop:  28.95m (LIDAR)

Myrddyn Phillips (November 2018)