Showing posts with label Cefn y Castell. Show all posts
Showing posts with label Cefn y Castell. Show all posts

Saturday, 1 March 2025

Mapping Mountains – Significant Name Changes – Y Trichant – The 300m Hills of Wales


Cefn y Castell (SJ 305 133) 

There has been a Significant Name Change to a hill that is listed in the Y Trichant – The 300m Hills of Wales, with the summit height, bwlch height and their locations, the drop and status of the hill derived from a Trimble GeoXH 6000 survey conducted by Myrddyn Phillips. 

Cefn y Castell (SJ 305 133)

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

Y Trichant – The 300m Hills of Wales – 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, and the Introduction to the Mapping Mountains publication of the list appearing on the 1st January 2022. 

Y Trichant - The 300m Hills of Wales by Myrddyn Phillips

The hill is adjoined to the Stiperstones group of hills, which are situated in the north-eastern part of South Wales (Region B, Sub-Region B2), and it is positioned with a minor road to its north and the A458 road to its south, and has the town of Y Trallwng (Welshpool) towards the south-west.

The hill appeared in the original 300m height band of Welsh P30 hills published on Geoff Crowder’s v-g.me website, under the transposed name of Middletown Hill, which is a prominent name that appears adjacent to the summit on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map.


Middletown Hill367mSJ305133126240


Since the original publication of the Welsh P30 lists on Geoff Crowder’s v-g.me website there have been a number of 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 were digitally updated such as the Ordnance Survey Vector Map Local that was hosted on the Geograph website and which was entitled the Interactive Coverage Map, whilst others are current and digitally updated such as the interactive mapping on the Magic Maps and WalkLakes websites.  Two of the historic maps now available online are the Ordnance Survey Draft Surveyors map which formed the basis for the first publicly available Ordnance Survey One-Inch ‘Old Series’ map, and it is these maps in conjunction with the Ordnance Survey series of Six-Inch maps that prompt the change in the listed name of this hill. 

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

The Draft Surveyors maps consist of the preliminary drawings made by the Ordnance Survey surveyors between the 1780s and 1840 and formed the basis for the first publicly available One-Inch map.  They were drawn at scales of six inches to the mile for areas considered of particular military significance and down to two inches to the mile for other areas.  Fair copies were then produced from these preliminary drawings to one inch to the mile and then copper plates were prepared for printing.  The Draft Surveyors maps for the whole of Wales are now available online and they form an important part in the study of Welsh upland place-names as they bridge the time frame between the late 18th century and the mid-19th century when the Ordnance Survey produced their first One-Inch maps, and importantly for this hill and its listed name, it is this map that uses the name of Cefn y Castell in regard to the ancient fortification on the summit area of this hill. 

Extract from the Ordnance Survey Draft Surveyors Map

The One-Inch ‘Old Series’ map was the first map that Ordnance Survey produced, and 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 form another important part in the study of Welsh upland place-names and bridge the timeframe leading up to the production of the Ordnance Survey base map of the Six-Inch series, and importantly for this hill and its listed name, it is also this map that places the name Cefn y Castell adjacent to the summit of this hill. 

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

The Ordnance Survey series of Six-Inch maps formed the base map Ordnance Survey used for many decades leading to the production of the 1:10,000 Series of maps, both have now been superseded by the digitised Master Map.  The series of Six-Inch maps are excellent for name placement and especially so compared to the contemporary Ordnance Survey 1:25,000 Explorer map, and it is also the series of Six-Inch maps that places the name of Cefn y Castell adjacent to the ancient fortification at the summit area of this hill.

Extract from the Ordnance Survey series of Six-Inch maps

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 and where this is substantiated by either historic documentation and/or contemporary usage should be prioritised in favour of a contemporary anglicised or English version of the name.  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.

Therefore, the name this hill is now listed by in the Y Trichant – The 300m Hills of Wales is Cefn y Castell and this was derived from a variety of sources, including the Ordnance Survey Draft Surveyors Map, the One-Inch ‘Old Series’ map and the series of Six-Inch maps.  With the caveat that living in Welshpool this is one of my local hills.  Being brought up an English speaker I have known this hill by its English name of Middletown Hill.  However, the name protocols used within the listing of the Y Trichant – The 300m Hills of Wales distate that the Welsh name of Cefn y Castell should be used. 

 

The full details for the hill are: 

Group:  Stiperstones 

Name:  Cefn y Castell 

Previously Listed Name:  Middletown Hill 

OS 1:50,000 map:  126

Summit Height:  367.8m (converted to OSGM15)                                                           

Summit Grid Reference:  SJ 30523 13332 

Bwlch Height:  271.3m (converted to OSGM15) 

Bwlch Grid Reference:  SJ 29697 13022 

Drop:  96.5m 

 

Myrddyn Phillips (March 2025)

 

 

  

Wednesday, 18 December 2013

Mapping Mountains - Trimble Surveys - Stiperstones



17.12.13  Pritchard’s Hill (SJ 316 147), Kempster's Hill (SJ 318 143), Bulthy Hill (SJ 312 136), Cefn y Castell (SJ 305 133), Middletown Hill (SJ 298 130), Moel y Golfa (SJ 290 125), New Piece (SJ 295 136), New Piece (SJ 297 141) and Breiddin (SJ 295 144)


Cefn y Castell (SJ 305 133)

Freshly enthused with the prospect of determining the absolute height of many a hill can give added impetus to revisit areas that have not been visited for many a year.  It was with this added enthusiasm that I set out for some of my local hills; the Breiddin.  I’d done a circuit of all the P30’s and Subs in this compact hill group a few years ago and had always wondered if I would repeat it.  With the forecast of winter sunshine and with confidence in using the Trimble I decided that five P30’s and two Subs, including one Marilyn and two marginal HuMPs was the order of the day.

The route took me up through patches of woodland where on my last visit I’d disturbed two deer, a rare sight on hills in mid Wales, to the grassy summit of Pritchard’s Hill (SJ 316 147).  Footpaths on the map indicated that I had to venture in to the back garden of a house before walking down a track to gain the lower slopes of Kempster’s Hill.  I was soon confronted with ‘Oh you, what are you doing there!’  This was the owner of the house who had spotted me from the end of the track, I sheepishly approached and apologised for any disturbance and then spent the next ten minutes in conversation about the local names of the hills.

By now the sun was up casting lengthy shadows on the ground as patches of mist in the valley below were edging their way around bends in the River Severn.  Gaining the summit of Kempster’s Hill (SJ 318 143) the open land of Shropshire was on view with sunlight enhancing the ridge of the Stiperstones.  I surveyed the high point and look forward to the result as no absolute height appears on the map for this hill.


On the summit of Kempster's Hill (SJ 318 143) looking towards Cefn y Castell

My next objective was Cefn y Castell (SJ 305 133), otherwise known as Middletown Hill.  Passing over Bulthy Hill (SJ 312 136) I decided to give it a quick survey.  Five minutes later I packed the Trimble in its protective case and carried on up the ridge to the summit of Cefn y Castell. 
 
The Trimble ventures in to deepest, darkest England on the high point of Bulthy Hill (SJ 312 136)

Gathering data on the summit of Cefn y Castell (SJ 305 133)

The time was now approaching 10.30am and a bank of cloud had appeared skimming the upper reaches of Cefn Digoll (Long Mountain).  This soon expanded to envelop the top of Moel y Golfa and the Breiddin with wisps of cloud gently rolling down the valley either side of where I stood.


The bank of cloud enveloping the summit of Moel y Golfa

I chatted with a man walking his two dogs on the way down to a 307m sub-hill and gathered data at its bwlch and summit, before assessing the bwlch of Cefn y Castell which has a 271m spot height on the narrow road on the Ordnance Survey enlarged mapping on the Geograph website.  This area has a parking ground for cars and I decided that the safest place for the Trimble was adjacent to this area on a grass verge.  It also seemed to be the point of the critical bwlch that could be deemed as ‘natural’.

The next hill was the highest and the only Marilyn of the day; Moel y Golfa (SJ 290 125).  The last time I had visited was with Bob Kerr who was staying over during his visits to film and be interviewed on his attempt of the Seven Summits (the continental high points).  On that particular day we sought shelter just below the summit amongst trees as there was a brisk wind that would destroy the audio on the small digital camera I conduct the interviews with.  Today the summit was peaceful with the bank of cloud greying the valley and the sun breaking through to highlight the colours on the higher land.  Twas a fine time to be out on the hill.


The Trimble on the summit of Moel y Golfa (SJ 290 125)

As each summit and bwlch was visited I collected a minimum of five minutes of data and continued this process as I attempted to decipher where the critical bwlch position was for the Breiddin.  Was it beside a tree in a field or on a gravel track or in another field full of sheep with rummaging pigs alerting local farmers of my presence?  I opted for data collection beside the tree and on the gravel track and quickly headed in to the Breiddin Forest where a series of wooded green tracks and the customary forest track took me over the summit of New Piece (SJ 295 136) toward its bwlch and then the summit of New Piece (SJ 297 141) a sub P30 hill whose name was later found from Tithe maps.


The forested summit of New Piece (SJ 295 136)

Next stop was the Breiddin and its large monument named Rodney’s Pillar.  I had a good look around the base of the monument and assessed the height of the natural rock on its four sides.  This is where a level and staff comes in to its own as judging by eyesight alone is not ideal.  The Trimble was set up and activated and gathered over 13 minutes of data as I pottered around with the camera and visited a nearby panoramic viewfinder.

The Breiddin (SJ 295 144) overlooking the flat lands of the Shropshire plain

The downward route through the forest was on a good green track all the way down the ridge toward the Admiral Rodney pub to the awaiting car.  I’d been out over seven hours and collected data at sixteen points.  A Marilyn, two marginal HuMPs, a further two P30’s and two subs and all except for one critical bwlch (the one for Moel y Golfa) had been surveyed.  It proved a great day on the hill.

LIDAR image of Pritchard's Hill (SJ 316 147)

Postscript 

Since visiting these hills full LIDAR coverage is now available.  The LIDAR (Light Detection & Ranging) technique produced highly accurate height and positional data that is now freely available for England and Wales.  Consequently the numerical details for these hills have been analysed using this technique, resulting in the LIDAR height and position being prioritised for some of these hills.


Survey Result:


Pritchard’s Hill

Summit Height:  172.6m (converted to OSGM15, Trimble GeoXH 6000)

Summit Grid Reference:  SJ 31608 14759 (Trimble GeoXH 6000)

Bwlch Height:  151.75m (LIDAR)

Bwlch Grid Reference:  SJ 31481 14542 (LIDAR)

Drop:  20.9m (Trimble GeoXH 6000 summit and LIDAR bwlch) (100m Sub-Twmpau addition) 

Dominance:  12.08% (Trimble GeoXH 6000 summit and LIDAR bwlch)




Kempster’s Hill

Summit Height:  246.1m (converted to OSGM15) 

Summit Grid Reference:  SJ 31830 14342

Bwlch Height:  197.9m (converted to OSGM15)

Bwlch Grid Reference:  SJ 31428 13989

Drop:  48.2m

Dominance:  19.58%




Bulthy Hill

Summit Height:  291.4m (converted to OSGM15, Trimble GeoXH 6000)

Summit Grid Reference:  SJ 31260 13672 (Trimble GeoXH 6000)

Col Height:  275.8m (LIDAR)

Col Grid Reference:  SJ 31179 13634 (LIDAR)

Drop:  15.6m (Trimble GeoXH 6000 summit and LIDAR bwlch) 

Dominance:  5.36% (Trimble GeoXH 6000 summit and LIDAR bwlch)





Summit Height:  367.8m (converted to OSGM15)

Summit Grid Reference:  SJ 30523 13332

Bwlch Height:  271.3m (converted to OSGM15)

Bwlch Grid Reference:  SJ 29697 13022

Drop:  96.5m

Dominance:  26.23%




Middletown Hill

Summit Height:  306.9m (converted to OSGM15)

Summit Grid Reference:  SJ 29869 13016

Bwlch Height:  280.5m (converted to OSGM15)

Bwlch Grid Reference:  SJ 30065 13115

Drop:  26.3m (Sub-Trichant addition)

Dominance:  8.58%




Moel y Golfa

Summit Height:  403.2m (converted to OSGM15, Trimble GeoXH 6000)

Summit Grid Reference:  SJ 29074 12528 (Trimble GeoXH 6000) 

Bwlch Height:  140.8m (LIDAR)

Bwlch Grid Reference:  SJ 32605 11659 (LIDAR)

Drop:  262.4m (Trimble GeoXH 6000 summit and LIDAR bwlch)

Dominance:  65.09% (Trimble GeoXH 6000 summit and LIDAR bwlch)




New Piece

Summit Height:  321.6m (converted to OSGM15, Trimble GeoXH 6000)

Summit Grid Reference:  SJ 29558 13655 (Trimble GeoXH 6000)

Bwlch Height:  281.1m (LIDAR)

Bwlch Grid Reference:  SJ 29789 13876 (LIDAR)

Drop:  40.5m (Trimble GeoXH 6000 summit and LIDAR bwlch)

Dominance:  12.59% (Trimble GeoXH 6000 summit and LIDAR bwlch)





Summit Height:  320.2m (converted to OSGM15)

Summit Grid Reference:  SJ 29767 14148

Bwlch Height:  295.0m (converted to OSGM15)

Bwlch Grid Reference:  SJ 29686 14281

Drop:  25.2m

Dominance:  7.87%






Summit Height:  366.6m (converted to OSGM15)

Summit Grid Reference:  SJ 29510 14414

Bwlch Height:  260.4m (converted to OSGM15)

Bwlch Grid Reference:  SJ 29166 13081

Drop:  106.2m

Dominance:  28.96%




For details on the bwlch survey of Moel y Golfa

For further details please consult the Trimble survey spreadsheet click {here}