Showing posts with label Coed Bodlondeb. Show all posts
Showing posts with label Coed Bodlondeb. Show all posts

Thursday, 18 April 2019

Mapping Mountains – Significant Name Changes – 30-99m Twmpau and Y Trechol – The Dominant Hills of Wales


Coed Bodlondeb (SH 779 781)

There has been a Significant Name Change to a hill that is listed in the 30-99m Twmpau and Y Trechol – The Dominant Hills of Wales, with the summit height, its location, the drop and status of the hill confirmed by LIDAR analysis, and a subsequent summit survey with the Trimble GeoXH 6000 conducted by Myrddyn Phillips, with the latter taking place on the 10th October 2018.

LIDAR image of Coed Bodlondeb (SH 779 781)

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

30-99m Twmpau - Welsh hills at or above 30m and below 100m in height with 30m minimum drop, with an accompanying sub list entitled the 30-99m Sub-Twmpau with the criteria for this sub category being all Welsh hills at or above 30m and below 100m 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.

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, with the Introduction to the Mapping Mountains publication of this list appearing on the 3rd December 2015.

The hill is adjoined to the Carneddau group of hills, which are situated in the North-western part of North Wales (Region A, Sub-Region A1), and it has the A547 road to its south-west and the Afon Conwy (River Conwy) to its north-east, and has the town of Conwy to its south.

This hill did not appear in the original Welsh 30-99m P30 list published on Geoff Crowder’s v-g.me website, and was only listed as a P30 in August 2015 due to research conducted by Mark Jackson.  When this hill was subsequently listed in the 30-99m Twmpau and Y Trechol – The Dominant Hills of Wales it appeared under the name of Bodlondeb Wood, which is a name that appears on the contemporary Ordnance Survey 1:25,000 Explorer map.

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

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.

Therefore, the name this hill is now listed by in the 30-99m Twmpau and Y Trechol – The Dominant Hills of Wales is Coed Bodlondeb, and this was derived as the Welsh name for this hill is prioritised over its English equivalent, which for listing purposes is standard practice.


The full details for the hill are:

Group:  Carneddau

Name:  Coed Bodlondeb

Previously Listed Name:  Bodlondeb Wood 

OS 1:50,000 map:  115

Summit Height:  55.6m (converted to OSGM15)

Summit Grid Reference:  SH 77921 78114

Bwlch Height:  22.9m (LIDAR, natural bwlch)

Bwlch Grid Reference:  SH 77852 77725 (LIDAR, natural bwlch) 

Drop:  32.6m (Trimble summit and LIDAR bwlch)

Dominance:  58.70% (Trimble summit and LIDAR bwlch)


My thanks to Aled Williams for his advice in relation to this hill name


Myrddyn Phillips (April 2019)






Friday, 15 February 2019

Mapping Mountains – Trimble Surveys – Carnedd Llywelyn


10.10.18  Coed Bodlondeb (SH 779 781)  

It was nearing the end of another bagging day but I wanted to visit two other hills before the sun sank and darkness fell, and the first of these two summits was Coed Bodlondeb, with its P30 status first noted by Mark Jackson in August 2015.

This hill is situated on the outskirts of Conwy and rises above the Conwy County Borough Council Offices and is wooded.  However, it has a number of paths leading toward its summit and I hoped to find one as I drove in to the County Council Offices car park and rather conveniently found the pay and display machine out of order.

I asked a passer-by if they knew where the start of a path leading up in to the wood was situated, and was kindly directed to stone steps leading in to the wood at the back of the large and grand building making up a part of the offices.

The steps lead the way

The wood is deciduous and proved beautiful to walk through with sunlight penetrating the canopy and autumn’s first colour change giving a semblance of variety.

The path through the wood

I soon arrived at the wooden bench which nestles beside the path and copious amounts of gorse that signify the top of this hill, with the high point beside one of the prickly gorse bushes I wondered how long it would take the Trimble to attain its 0.1m accuracy level before data should be logged.  Thankfully this was attained relatively quickly, and once the equipment was activated it beeped away gathering the allotted 600 datum points.

The Trimble set-up position at the summit of Coed Bodlondeb

During data collection I stood back on the continuation of the path as it headed north out of the wood.  Thankfully no one appeared as the Trimble gathered data and although the summit didn’t afford any view it was still a quiet and tranquil place to spend the late afternoon.

Gathering data at the summit of Coed Bodlondeb

Once data were gathered and stored and the Trimble switched off and packed away I retraced my inward route back to my awaiting car, and then drove toward my last hill of the day; Foel Gron (SH 583 621) which is situated above Deiniolen.

    

Survey Result:



Summit Height:  55.6m (converted to OSGM15)

Summit Grid Reference:  SH 77921 78114

Bwlch Height:  22.9m (LIDAR, natural bwlch) (with the A55 road cutting increasing the depth of the man-made bwlch to 12.0m)

Bwlch Grid Reference:  SH 77852 77725 (LIDAR, natural bwlch) (with the A55 man-made road cutting bwlch positioned at SH 77683 77840)

Drop:  32.6m (Trimble summit and LIDAR bwlch) (30-99m Twmpau addition)

Dominance:  58.70% (Trimble summit and LIDAR bwlch) (Dominant addition)







Thursday, 6 July 2017

Mapping Mountains – Hill Reclassifications – 30-99m Twmpau


Coed Bodlondeb (SH 779 781) – 30-99m Sub-Twmpau reclassified to 30-99m Twmpau

There has been a reclassification to the Twmpau (thirty welsh metre prominences and upward) list with this hill being included in the 30-99m Twmpau height band.  Accompanying all the 100m height band of hills within the Twmpau are sub lists with the one attached to this list being entitled the 30-99m Sub-TwmpauThe details relating to this hill’s addition are retrospective as its inclusion as a P30 was reported on Mapping Mountains on the 17th December 2015.

The criteria for 30-99m Twmpau status is all Welsh hills at or above 30m and below 100m in height with 30m minimum drop, whilst the criteria for 30-99m Sub-Twmpau status is all Welsh hills at or above 30m and below 100m in height with 20m or more and below 30m of drop.

Prior to this hill’s inclusion as a 30-99m Twmpau it was listed with an estimated c 27m of drop based on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps giving the hill an uppermost 50m ring contour and bwlch contouring between 20m – 30m, resulting in an estimated summit height of c 53m and an estimated bwlch height of c 26m.

The hill is positioned in the Carneddau group of hills and is placed in the Region of North Wales (Region A, Sub-Region A1) with its Cardinal Hill being Tal y Fan (SH 729 726) and is situated on the northern outskirts of Conwy with the Afon Conwy to its immediate north and east.

As the name of the hill suggests it is a part of a wood which is made up of deciduous trees and for those wanting to visit permission should be sought as it is not a part of designated open access land.  However, access is relatively easy with public parking available next to where the Offices are marked to the south of the summit on Ordnance Survey maps, and there are a number of paths marked on the map that head up to, or contour around the top of the hill.

The name of the hill is Coed Bodlondeb and it is included as a 30-99m Twmpau as the Ordnance Survey enlarged mapping hosted on the Geograph website has contours at 5m intervals giving the hill an uppermost contour of 55m and bwlch contouring between 20m – 25m.  Therefore the summit is estimated as being c 57m high and the bwlch estimated as being c 23m high, with these values giving this hill c 34m of drop.

Since this hill was originally included in the Twmpau list the summit has been surveyed with the Trimble GeoXH 6000 and the bwlch of the hill has been analysed via LIDAR and the resulting values are given below.


The full details for the hill are:


Cardinal Hill:  Tal y Fan

Name:  Coed Bodlondeb

OS 1:50,000 map:  115

Summit Height:  55.6m (converted to OSGM15)

Summit Grid Reference:  SH 77921 78114

Bwlch Height:  22.9m (LIDAR)

Bwlch Grid Reference:  SH 77852 77725 (LIDAR)

Drop:  32.6m (Trimble summit and LIDAR bwlch)


Gathering data at the summit of Coed Bodlondeb

For details on the summit survey of Coed Bodlondeb

Myrddyn Phillips (July 2017)


Saturday, 18 February 2017

Mapping Mountains – Hill Reclassifications – Y Trechol – The Dominant Hills of Wales


Coed Bodlondeb (SH 779 781) - Dominant addition

There has been an addition to the listing of Y Trechol – The Dominant Hills of Wales due to detail included on the Ordnance Survey enlarged mapping hosted on the Geograph website.  This has resulted in the hill being added to the Dominant list.  With the criteria for inclusion to this list being those Welsh P30 hills whose prominence equal or exceed half that of their absolute height.

The details relating to this hill’s inclusion as a Dominant hill are retrospective as it appeared in the Carneddau group of hills when published on Mapping Mountains on the 17th December 2015.

Prior to this hill’s inclusion as a Dominant hill it was listed with an estimated c 27m of drop based on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer maps giving the hill an uppermost 50m ring contour and bwlch contouring between 20m – 30m, resulting in an estimated summit height of c 53m and an estimated bwlch height of c 26m.

The hill is in the Carneddau group of hills and is placed in the Region of North Wales (Region A, Sub-Region A1) and is situated on the outskirts of Conwy with the Afon Conwy to its immediate north and east.

If wanting to visit the hill it can be accessed relatively easily with public parking available next to where the Offices are marked to the south of the summit on Ordnance Survey maps.  There are a number of paths marked on the map that head up to, or contour around the summit, and as the name of the hill suggests it is part of a wood which consists of deciduous trees.

The name of the hill is Coed Bodlondeb and it is included as a Dominant hill as the Ordnance Survey enlarged map hosted on the Geograph website has contours at 5m intervals giving the hill an uppermost contour of 55m and bwlch contouring between 20m – 25m.  Therefore the summit is estimated as being c 57m high and the bwlch estimated as being c 23m high, with these values giving this hill c 34m of drop and 59.65% Dominance.

Since this hill was originally included in the Y Trechol - The Dominant Hills of Wales list the summit has been surveyed with the Trimble GeoXH 6000 and the bwlch of the hill has been analysed via LIDAR and the resulting values are given below.


The full details for the hill are:


Cardinal Hill:  Tal y Fan

Name:  Coed Bodlondeb

OS 1:50,000 map:  115

Summit Height:  55.6m (converted to OSGM15)

Summit Grid Reference:  SH 77921 78114

Drop Summit to Bwlch:  32.6m (Trimble summit and LIDAR bwlch)

Drop Bwlch to ODN:  22.9m (LIDAR) 

Bwlch Grid Reference:  SH 77852 77725 (LIDAR)

Dominance:  58.70%


Gathering data at the summit of Coed Bodlondeb

For details on the summit survey of Coed Bodlondeb

Myrddyn Phillips (February 2017)