Mapping Mountains – Significant Name Changes – 100m Twmpau

Caergwrle (SJ 306 571)

There has been a Significant Name Change to a hill that is listed in the 100m Twmpau, and the following details are in respect of a hill that was surveyed with the Trimble GeoXH 6000 on the 13^th October 2015.

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

100m Twmpau - All Welsh hills at and above 100m and below 200m in height that have 30m minimum drop, with the word Twmpau being an acronym standing for thirty welsh metre prominences and upward.

The hill is a part of the Moel y Gamelin range; this group of hills are situated in the north-eastern part of north Wales.  The hill is positioned above the southern outskirts of the small town of Caergwrle, whose name would have originally been taken from the hill fort / castle on top of this hill.

Caergwrle (SJ 306 571)

The hill appeared in the 100m P30 list on Geoff Crowder’s v-g.me website under an invented name of Castle Hill, with an accompanying note stating; Name from remains of castle, with the remains of the castle being situated on the summit area of the hill.  

  

Castle Hill

137m

SJ307572

117

256

Name from remains of castle

During my early hill listing I thought it appropriate to invent a name for a hill if no name seemed to appear for it on Ordnance Survey maps of the day.  My preference was to use farm names and put Pen, Bryn or Moel in front of them and in this instance I used an invented name based on the remains of a castle.  This is not a practice that I now advocate as with research either conducted locally or historically an appropriate name for the hill can usually be found and as the name of Caergwrle is directly linked to the castle on the summit of this hill it is appropriate to use this name for the hill.

Therefore the name this hill is now listed by in the 100m Twmpau is Caergwrle, and this was derived from Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps.   

The full details for the hill are:

Group:  Moel y Gamelin

Name:  Caergwrle

Previously Listed Name:  Castle Hill 

Summit Height:  137.8m (converted to OSGM15)

OS 1:50,000 map:  117

Summit Grid Reference:  SJ 30670 57148  

Drop:  41.9m (converted to OSGM15)

For details on the survey of Caergwrle

Myrddyn Phillips (September 2016)