Mapping Mountains – Significant Name Changes – The Fours - The 400m Hills of England

Penn Moor (SX 602 645)

There has been a Significant Name Change to a hill that is listed in the The Fours – The 400m Hills of England, with the summit height, col height and their locations, the drop and status of the hill derived from subsequent LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Penn Moor (SX 602 645)

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

The Fours – The 400m Hills of England.  English hills at or above 400m and below 500m in height that have 30m minimum drop, accompanying the main list are three categories of sub hills, these are the 400m Sub-Fours, the 390m Sub-Fours and the 390m Double Sub-Fours.  The list is co-authored by Myrddyn Phillips and Aled Williams and the 2^nd edition of the booklet containing this list was published by Mapping Mountains Publications on the 24^th April 2018.

The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams

The hill is adjoined to the Ryder's Hill group of hills, which are situated in Dartmoor in the south-west of the country, and it is positioned with a minor road to its west and south, and the B3417 road to its south-west, and has the port city of Plymouth towards the south-west.

Extract from the Ordnance Survey series of Six-Inch maps

When the listing that is now known as The Fours – The 400m Hills of England was originally compiled by Myrddyn Phillips this hill appeared under the name of Penn Moor; which is a prominent name that appears to the south of the summit on the Ordnance Survey series of Six-Inch maps and to the south-east of the summit on the contemporary Ordnance Survey 1:25,000 Explorer map, and this was also the name the hill appeared as when the list was uploaded to the RHB Yahoo group file database, with the caveat that it included a name in brackets; Pen Moor (Langcombe Hill). 

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

When the 1^st edition of the The Fours now co-authored by Myrddyn Phillips and Aled Williams was published by Europeaklist in December 2013 the listed name of this hill was given as Lee Moor, which is a prominent name that appears on a variety of Ordnance Survey maps to the west of its summit.

However, when the 2^nd edition of The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, the listed name of this hill was reverted back to Penn Moor.

Therefore, the name this hill is now listed by in The Fours - The 400m Hills of England is Penn Moor and this was derived from studying contemporary and historic Ordnance Survey maps. 

The full details for the hill are:

Group:  Ryder’s Hill

Name:  Penn Moor

Previously Listed Name:  Lee Moor 

OS 1:50,000 map:  202

Summit Height:  493.0m (LIDAR)

Summit Grid Reference:  SX 60297 64596 (LIDAR) 

 

Col Height:  451.6m (LIDAR)

Col Grid Reference:  SX 61825 66697 (LIDAR)

Drop:  41.4m (LIDAR)

Myrddyn Phillips and Aled Williams (September 2018)