Watson’s Pike (NY 893 526)
There has been a Summit Relocation 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 LIDAR analysis conducted by Myrddyn Phillips.
LIDAR image of Watson's Pike (NY 893 526) |
The criteria for the list that this summit
relocation 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; the
400m Sub-Four category, the 390m Sub-Four category and the 390m Double Sub-Four
category. 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 |
The name the hill is listed by is Watson’s Pike, and it is adjoined to the Burnhope
Seat group of hills,
which are situated in the northern Penninnes, and it is positioned with the
B6295 road to its west and the B6306 road to its east, and has the village of
Allendale towards the north-west.
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 listed with 64m of drop,
based on the 447m summit spot height adjoined to a triangulation pillar positioned
at NY 89151 52787 that appears on the Ordnance Survey 1:50,000 Landranger and
1:25,000 Explorer map and the 383m col spot height that appears on the Ordnance
Survey 1:25,000 Explorer map.
Extract from the Ordnance Survey 1:25,000 Explorer map |
However, it was not until LIDAR became available
that the details for this hill could be accurately re-assessed. The LIDAR (Light Detection & Ranging)
technique produced highly accurate height data that is now freely available for
much of England and Wales.
LIDAR summit image of Watson's Pike (NY 893 526) |
LIDAR analysis gives the highest ground on this
hill as 447.6m positioned at NY 89303 52615, as opposed to 447.4m positioned at
NY 89146 52786 and this comes
within the parameters of the Summit
Relocations used within
this page heading, these parameters are:
The term Summit Relocations applies to when the
high point is positioned in a different field, to a different feature such as a
conifer plantation, within a different map contour, a different point where a
number of potential summit positions are within close proximity, when natural
ground or the natural and intact summit is confirmed compared to a higher point
such as a raised field boundary or covered reservoir that is considered a
relatively recent man-made construct, or a relocation of approximately 100
metres or more in distance from either the position of a map spot height or
from where the summit of the hill was previously thought to exist.
Therefore, the summit
height produced by LIDAR analysis is 447.6m and this is positioned at NY 89303
52615. This position is not given a spot
height on the contemporary Ordnance Survey 1:50,000 Landranger and 1:25,000
Explorer map and is approximately 175 metres south-eastward from where the
previously listed summit is positioned.
The full details for the hill are:
Group: Burnhope Seat
Name: Watson’s Pike
OS 1:50,000 map: 87
Summit Height: 447.6m
(LIDAR)
Summit Grid Reference (New Position): NY 89303 52615 (LIDAR)
Col Height: 381.6m
(LIDAR)
Col Grid Reference: NY
88511 51931 (LIDAR)
Drop: 66.0m (LIDAR)
Myrddyn Phillips and Aled Williams (March 2023)
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