Mapping Mountains – Hill Reclassifications – Humps

Pengarn (SN 132 485) – Subhump addition

This is the first in a series of Hill Reclassification posts that detail hills whose status has been altered in the listing of the Humps (HUndred Metre Prominences) through map study and / or surveys that I have conducted.

The hill name used in this and forthcoming posts is that used in the listing of Humps, therefore individual names may not match those that are used in listings I am directly associated with.  However, I am of firm belief that listed hill names used by other authors should be respected when giving detail within other people’s lists, however inappropriate some hill names may be considered.

This and forthcoming posts are retrospective as many of these hill reclassifications were initiated from studying the Ordnance Survey enlarged mapping that is hosted on the Geograph website, and for the reclassifications that affected the Humps the first email I posted on the RHB Yahoo Group forum was dated 27.01.12.

The listing of Humps was published in book format by Lulu in 2009 and entitled More Relative Hills of Britain, its author; Mark Jackson gives credit to a number of people who contributed toward the formation of this list, these include; Eric Yeaman, Alan Dawson, Clem Clements, Rob Woodall, Bernie Hughes, Pete Ridges and others.  When the list was published in book format there were 2987 Humps listed with their criteria being any British hill that has 100m or more of drop, accompanying the main list is a sub category entitled the Subhumps, with the criteria being any British hill that has 90m or more and below 100m of drop.

More Relative Hills of Britain by Mark Jackson

The details for the reclassification appear below:

There has been an addition to the listing of the Humps (HUndred Metre Prominences) due to consulting the Ordnance Survey 1:25,000 Explorer map, with these details being posted on the RHB Yahoo Group forum on 27.01.12.

Prior to this notification Mark Jackson had listed this hill with c 31m of drop, however with a 189m summit height given to a triangulation pillar and bwlch contouring between 95m – 100m with an estimated bwlch height of c 96m, it gives this hill an estimated c 93m of drop, which is sufficient for it to be classified as a Subhump.

Extract from the Ordnance Survey 1:25,000 Explorer map showing heights and contours at the summit and bwlch of this hill

The hill appears under the name of Pengarn in the Humps, with this name having appeared in the original 100m Welsh P30 list published on Geoff Crowder’s v-g.me website and which was derived from buildings situated north-east of the hill’s summit.

The hill is adjoined to the Mynydd Preseli range of hills and is situated overlooking the coast with Pen Cemaes (Cemaes Head) directly to its north and the small community of Cipin to its south-east.

The addition of this hill to Subhump status was accepted by Mark Jackson and its new classification augmented in to the listing of the Humps on the 28.01.12.

The full details for the hill are:

Name:  Pengarn (as listed in the Humps)

Summit Height:  189m

OS 1:50,000 map:  145

OS 1:25,000 map:  35, 198

Summit Grid Reference:  SN 13213 48502

Drop:  c 92m (as listed in the Humps)

Myrddyn Phillips (August 2017)