Foel-fras (SH 728 481) – Dewey addition
This is one in a series of retrospective Hill Reclassification posts that detail hills whose status has altered in the listing of the Deweys and where I have had direct association with the status change. These posts will tie in with a forthcoming Change Register giving detail to this list and its alterations since publication in the Mountain tables book.
|Foel-fras (SH 728 481)|
The 500-Metre Tops of England and Wales are affectionately known after their hill list compiler; Michael Dewey. This list mixes metric and imperial height in its criteria to bookend up to the 2000ft height band and takes in all hills in England, Isle of Man and Wales that are 500m and above and below 2000ft (609.6m) in height that have 30m minimum drop.
This list formed one of a number of lists that appeared in the Mountain tables book published by Constable in 1995 and at the time of publication comprised 373 hills with 164 in England, 5 in the Isle of Man and 204 in Wales. The Deweys have undergone extensive revision since first publication with the initial stages forming the basis of this revision given below:
1995 Mountain tables published by Constable with 373 hills listed as Deweys.
April 2000 Strider (LDWA quarterly booklet) publishes contact details for David Purchase and Myrddyn Phillips who have found and list 24 and 14 possible new 500m tops respectively.
It was expanded versions of the above two lists that formed the basis of the next publication:
25th May 2000 List of Possible 500 Metre Tops by Michael Dewey listing 44 hills.
David Purchase expands his Additional Dewey 500m Hills and Myrddyn Phillips produces lists of English 500m hills to measure and Welsh 500m hills to measure.
These lists formed the basis of the next publication:
29th June 2000 Possible/Probable 500’s by Michael Dewey listing 77 hills. Michael adopts following protocol; if one person proposes that a top should qualify as a 500 by personal survey, and is then confirmed by a second person, it should then be promoted to the main list.
April 2002 The 500+ Tops of England and Wales – The ‘New Deweys’ published in the Strider booklet and listing 66 new qualifying hills.
25th May 2006 Rob Woodall republishes Michael’s main and possible/probable lists on the RHB Yahoo group file database.
The details for this addition appear below:
The name the hill is listed by and its composition in the Deweys is Foel-fras, and it is adjoined to the Arenig group of hills which are situated in the north-western part of north Wales, and it is positioned with the A470 road to its north and west, the B4407 road to its south-east and the A5 road to its east north-east, and has the village of Dolwyddelan towards the north.
This hill was not included in the original 1995 Constable publication, but with a 586m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and bwlch contouring between 550m – 560m on the 1:50,000 Landranger and 1:25,000 Explorer map, the drop of this hill was estimated from bwlch interpolation to have the minimum of 30m required for qualification as a Dewey.
|Extract from the Ordnance Survey 1:25,000 Explorer map|
The above detail was noted by David Purchase and Myrddyn Phillips who worked independently but also exchanged all data. These details were forwarded to the list author; Michael Dewey and the hill was added to the list on the 3rd May 2000. Subsequently Myrddyn Phillips conducted a basic levelling survey of this hill on the 4th May 2000 without prior knowledge of its recent inclusion, resulting in the hill having over 30m of drop.
The full details for the hill are:
OS 1:50,000 map: 115
OS 1:25,000 map: 18
Summit Height: 586m (spot height)
Summit Grid Reference: SH 72803 48165 (hand-held GPS via DoBIH)
Bwlch Height: c 556m (interpolation)
Bwlch Grid Reference: SH 72282 48254 (interpolation)
Drop: c 30m (spot height summit and interpolated bwlch)
Myrddyn Phillips (April 2020)