Low Fell (NY 135 222) – 400m Sub-Four addition
There has been an addition to the listing of 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 by Joe Nuttall who produced a summit analysis programme using LIDAR, and then by LIDAR analysis conducted by Myrddyn Phillips.
LIDAR image of Low Fell (NY 135 222) |
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 listing of The Fours are three categories
of sub hills, with this hill being included in the 400m Sub-Four category, the
criteria for which are all English hills at or above 400m and below 500m in
height that have 20m or more and below 30m of drop. The list is co-authored by Myrddyn Phillips
and Aled Williams and the 2nd edition of the booklet containing this
list was published by Mapping Mountains Publications on the 24th
April 2018.
The Fours - The 400m Hills of England by Myrddyn Phillips and Aled Williams |
When the 2nd edition of the The Fours – The 400m Hills of England was published by Mapping Mountains Publications in April 2018, this hill was not included in the accompanying sub list, as it was considered not to meet the criteria used for this sub category.
However, during the updating of this list for the 2nd edition this hill was noted and listed with an estimated c 13m of drop, based on the 412m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 399m col height based on interpolation of 10m contouring between 390m – 400m.
Extract from the Ordnance Survey 1:25,000 Explorer map |
Therefore, the addition of this hill to 400m
Sub-Four status is due to LIDAR analysis, resulting in a 417.1m summit height
and a 395.5m col height, with these values giving this hill 21.6m of drop,
which is sufficient for 400m Sub-Four status.
The full details for the hill are:
Group: Great Gable
Name: Low Fell
OS 1:50,000 map: 89
Summit Height: 417.1m
(LIDAR)
Summit Grid Reference:
NY 13598 22260 (LIDAR)
Col Height: 395.5m (LIDAR)
Col Grid Reference: NY
13659 22371 (LIDAR)
Drop: 21.6m (LIDAR)
For the additions, deletions and reclassifications to The Fours – The 400m Hills of England reported
on Mapping Mountains since the December 2013 publication of the 1st
edition of this list by Europeaklist please consult the following Change
Registers:
The Fours – 390m Double Sub-Four
Our thanks to Ronnie Bowron for bringing the details of this
hill to our attention
Myrddyn Phillips and Aled Williams (August 2021)
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