Hill Reclassifications - 200m Twmpau

This part of the Mapping Mountains blog is dedicated to any hill reclassification for the listings I have compiled.  These include ones found from map detail as well as those from accurate surveying.

There have been a number of recent new entries to the Welsh 200m P30 list, including some that do not appear on other P30 listings.  The following are those for Y Berwyn:

Y Berwyn             Y Foel    258m    SH 993 117

A promotion from the sub-list as the summit spot height on Ordnance Survey maps is 258m and the height of the bwlch is estimated as c 227m (bwlch contouring between c 220m – c 230m), giving a drop of c 31m.  The hill was originally listed as Foel, the definite article ‘Y’ has now been added.

There have also been a number of ‘new’ subs that have entered the Welsh 200m P30 listing for Y Berwyn, these are:

Y Berwyn             Bachrug    c 292m    SJ 138 150 

This hill has an estimated summit height of c 292m, with an uppermost summit contour of c 290m.  It has a spot height of 263m on the area of its bwlch on the Ordnance Survey enlarged Geograph map, giving a drop of c 29m.  An ideal hill to survey with the Trimble for P30 status.

Y Berwyn             Pt. 209m    209m    SJ 163 254 

Another hill that uses the Pt. notation as no suitable name has been found for it by the blog author.  The summit has a 209m spot height and with bwlch contouring between c 180m – c 190m, with an estimated bwlch height of c 27m.  It means this hill qualifies for the Sub-list with an estimated drop of c 27m.

Y Berwyn             Coed Lletty-yr-eos    248m    SJ 132 207 

As the uppermost and opposing bwlch contours are relatively close on the valley to valley traverse, the height of the bwlch has been estimated as c 223m (bwlch contouring between c 220m – c 230m).  And with a summit spot height of 248m, this gives the hill c 25m of drop.

Y Berwyn             Pt. 238m    238m    SJ 129 193 

The summit and bwlch of this hill both possess a spot height, 238m and 216m respectively.  This gives the hill a drop of 22m.  The Pt. notation is used as no name is known for the hill by the blog author.

Y Berwyn             Pt. 213m    213m    SJ 214 218 

As the blog author does not know an appropriate name for this hill the Pt. notation is being used.  The summit has a 213m spot height and the bwlch has a 191m spot height on the Ordnance Survey enlarged Geograph map.  Although the latter spot height is not centred, its position is acceptable, giving the hill 22m of drop.

Y Berwyn             Berwyn    236m    SJ 207 224 

The 236m summit height is taken from the Ordnance Survey 1:25,000 map, and with bwlch contouring between c 210m – c 215, with an estimated height of c 214m, it gives this hill a drop of c 22m.  The name of Berwyn is positioned near to the summit of this hill on larger scale Ordnance Survey maps.  However, there is a farm placed at SJ 205 222, that this name may apply to.

Y Berwyn             Pt. 212m    212m    SJ 112 135 

With a 212m summit spot height, and a 191m bwlch spot height on the Ordnance Survey enlarged Geograph map, this hill has 21m of drop.  As no appropriate name is known for the hill the Pt. notation has been used.

Y Berwyn             Chirk Castle    c 212m    SJ 268 381 

Excellent news – you can go to Chirk Castle and bag a Sub hill!  The summit of this hill is somewhere in the confines of Chirk Castle, it could well be in the tea room.  The bwlch contouring is between c 190m – c 195m and is estimated as c 191m, giving the hill c 21m of drop.  I wonder if the Trimble would pick up data in a tea room?

Y Berwyn             Pt. 298m    298m    SJ 032 139 

Another hill name that uses the Pt. notation.  The summit has a 298m spot height and the bwlch height is estimated as c 278m at SJ 024 140, giving a drop of c 20m.

Y Berwyn             Pt. c 291m    c 291m    SJ 067 162 

The summit height has been estimated as c 291m as the hill has a small uppermost c 290m ring contour.  The bwlch has a 271m spot height at SJ 063 159 on the Ordnance Survey enlarged Geograph map, giving this hill a drop of c 20m.

Y Berwyn             Green Hall Hill    256m    SJ 156 192 

With a summit spot height of 256m and an estimated bwlch height of c 236m, based on bwlch contouring of c 230m – c 240, this hill has c 20m of drop.

The hills listed above are updates to the Welsh 200m P30 list originally published on Geoff Crowder's website.  To see the original list click {here}