Sunday 28 April 2019

Mapping Mountains – Significant Name Changes – Y Trichant


Panelau (SH 613 501)

There has been a Significant Name Change to a hill that is listed in the Y Trichant, with the bwlch height and its location confirmed by LIDAR analysis and subsequently the summit, its location and drop of the hill confirmed by a survey with the Trimble GeoXH 6000 which were conducted by Myrddyn Phillips, with latter taking place on the 18th October 2018.

Panelau (SH 613 501)

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

Y Trichant – Welsh hills at or above 300m and below 400m in height that have 30m minimum drop, with an accompanying sub list entitled the Sub-Trichant with the criteria for this sub category being all Welsh hills at or above 300m and below 400m in height with 20m or more and below 30m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list and the renaming of it appearing on Mapping Mountains on the 13th May 2017.

The hill is adjoined to the Yr Wyddfa group hills which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the A498 road and Llyn Dinas to its south-east, and has the small community of Beddgelert towards its south-west.

The hill originally appeared in the 300m P30 list on Geoff Crowder’s v-g.me website under the name of Gallt y Llyn, which is a name that appears on this hill’s lower easterly slopes on contemporary Ordnance Survey maps, with an accompanying note stating; aka Panelau.


Gallt y Llyn
338m
115
17
aka Panelau


During my early hill listing I paid little regard to name placement on the map, or the meaning of names and to what feature the name was appropriately applied to.  Therefore I prioritised names for listing purposes that I now understand are either inappropriate or where another name is viewed as being more appropriate. 

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

Since publication of these P30 lists on Geoff Crowder’s v-g.me website there have been a number of Ordnance Survey maps made available online, some of these are historic such as the series of Six-Inch maps on the National Library of Scotland website, whilst others are current and digitally updated such as the Vector Map Local hosted on the Geograph website and which is entitled the Interactive Coverage Map.  One of the historic maps now available is the Ordnance Survey One-Inch ‘Old Series’ map, which was the first map made publicly available by the Ordnance Survey and it is this map that has the name Panelau positioned close to this hill’s summit. 

Extract from the Ordnance Survey One-Inch 'Old Series' map

The One-Inch ‘Old Series’ was the first map that Ordnance Survey published, and they were based on the proceeding Draft Surveyors map.  Their publication culminated from the whole of Britain being surveyed between 1791 and 1874 and the detail gathered therein produced at a scale of one inch to the mile and published in sheet format between 1805 and 1874.  The One-Inch ‘Old Series’ maps for the whole of Wales are now available online; they are also available in map format as enlarged and re-projected versions to match the scale and dimensions of the Ordnance Survey 1:50,000 Landranger series and are published by Cassini.  This series of maps forms another important part in the study of Welsh upland place-names and bridge the time frame leading to the production of the Ordnance Survey base map of the Six-Inch series.    

Therefore, the name this hill is now listed by in the Y Trichant is Panelau, and this name was derived from the Ordnance Survey One-Inch ‘Old Series’ map.


The full details for the hill are:

Group:  Yr Wyddfa

Name:  Panelau

Previously Listed Name:  Gallt y Llyn

OS 1:50,000 map:  115

Summit Height:  337.6m (converted to OSGM15)

Summit Grid Reference:  SH 61301 50197

Bwlch Height:  287.2m (converted to OSGM15)

Bwlch Grid Reference:  SH 61341 50439

Drop:  50.4m


My thanks to Aled Williams for advice relating to this hill name


Myrddyn Phillips (April 2019)






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