Mapping Mountains – Significant Name Changes – 200m Twmpau

 

Moel y Lump (SO 120 997) 

There has been a Significant Name Change to a hill that is listed in the 200m Twmpau, with the summit height and its location derived from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips, and the bwlch height and its location, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

Moel y Lump (SO 120 997)

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

200m Twmpau - Welsh hills at or above 200m and below 300m in height with 30m minimum drop, with an accompanying sub list entitled the 200m Sub-Twmpau with the criteria for this sub category being all Welsh hills at or above 200m and below 300m 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. 

The 200m Twmpau by Myrddyn Phillips

The hill is adjoined to the Carnedd Wen group of hills which are situated in the south-eastern part of North Wales (Region A, Sub-Region A4), and it is encircled by minor roads, with also the B4390 road to its north, the B4389 road to its west and the A483 road to its south-east, and has the village of Tregynon towards the west south-west. 

When the original 200m height band of Welsh P30 hills were published on Geoff Crowder’s v-g.me website this hill was listed under the name of Moelywigoedd, with an accompanying note stating; Name from buildings to the South-East.

Moelywigoedd

277m

SO120997

136

215

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 near farm for that of the hill.  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

This was one of a number of hills on a circular walk and I called at Moelywigoedd to ask permission to visit.  I was met by Ian Jerman and his sister, we chatted for a number of minutes in the farmyard and soon afterward I was sitting in a vehicle as Ian drove to the top of the hill.  Ian told me he knows this hill as Moel y Lump or The Lump and it was the highest on the day’s walk and a fine viewpoint looking out toward the distant Aran and a part of the Cadair Idris range just poking above the intervening land. 

Ian Jerman on Moel y Lump

Therefore, the name this hill is now listed by in the 200m Twmpau is Moel y Lump, and this was derived from local enquiry. 

 

The full details for the hill are:

Group:  Carnedd Wen

Name:  Moel y Lump

Previously Listed Name:  Moelywigoedd   

OS 1:50,000 map:  136

Summit Height:  276.3m (converted to OSGM15, Trimble GeoXH 6000) 

Summit Grid Reference:  SO 12003 99753 (Trimble GeoXH 6000) 

Bwlch Height:  c 221m (interpolation) 

Bwlch Grid Reference:  SO 11982 00152 (interpolation) 

Drop:  c 55m (Trimble GeoXH 6000 summit and interpolated bwlch)

 

Myrddyn Phillips (January 2021)