Mapping Mountains – Significant Name Changes – 200m Twmpau and Y Trechol – The Dominant Hills of Wales

 

Gogarth (SH 767 833) 

There has been a Significant Name Change to a hill that is listed in the 200m Twmpau and Y Trechol – The Dominant Hills of Wales, with the summit height, bwlch height and their locations, the drop, dominance and status of the hill derived from a Trimble GeoXH 6000 survey and LIDAR analysis conducted by Myrddyn Phillips. 

Gogarth (SH 767 833)

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

200m Twmpau – Welsh hills at or above 200m and below 300m in height that have 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

Y Trechol – The Dominant Hills of Wales – Welsh P30 hills whose prominence equal or exceed half that of their absolute height.  With the criteria for Lesser Dominant status being those additional Welsh P30 hills whose prominence is between one third and half that of their absolute height.  The list is authored by Myrddyn Phillips with the Introduction to the start of the Mapping Mountains publication of this list appearing on the 3^rd December 2015, and the list is now available in its entirety on Mapping Mountains in Google Doc format. 

Y Trechol - The Dominant Hills of Wales by Myrddyn Phillips

The hill appeared in the original Welsh 200m P30 list on Geoff Crowder’s v-g.me website, under the name of Great Orme, which is the name this hill is known as in English and which appears near the summit of this hill on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.

Great Orme

207m

SH768833

115

17

Marilyn. Clem/Yeaman.

 

The intricacies of language and prioritising one in favour of another for listing a hill is fraught with complication, with originating Cymraeg names being anglicised and also originating English names being cymricised, examples such as these are more common in border country and especially so for anglicised forms.  There is no steadfast rule that fits all, but as a standard a name that has its origins in the Welsh language should be prioritised in favour of a contemporary anglicised or English version of the name, and ideally for this to be substantiated by either historic documentation and/or contemporary usage.  Likewise, if a name exists where an element of it is in English and if this name applies to a hill that is situated in a Welsh speaking part of Wales it is standard practice to use a full Welsh term for the name.  It is also standard practice to use a Welsh name for a hill if another name exists that has originated in a different language.  

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

Therefore, the name this hill is now listed by in the 200m Twmpau and Y Trechol – The Dominant Hills of Wales is Gogarth, and this name is used as it is the prioritised Welsh name for this hill.  This name is also represented on the contemporary Ordnance Survey 1:25,000 Explorer map with the caveat that it is documented with the use of the definite article ‘Y’. 

 

The full details for the hill are:

Group:  Mynydd Hiraethog

Name:  Gogarth

Previously Listed Name:  Great Orme   

OS 1:50,000 map:  115

Summit Height:  207.1m (converted to OSGM15, Trimble GeoXH 6000) 

Summit Grid Reference:  SH 76749 83334 (Trimble GeoXH 6000) 

Bwlch Height:  5.4m (LIDAR) 

Bwlch Grid Reference:  SH 82244 78704 (LIDAR) 

Drop:  201.7m (Trimble GeoXH 6000 summit and LIDAR bwlch) 

Dominance:  97.41% (Trimble GeoXH 6000 summit and LIDAR bwlch) 

 

Myrddyn Phillips (April 2022)