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.
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| 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.
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| Mountain tables by Michael Dewey |
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.
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| 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:
Name: Foel-fras
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)
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