SU0230 : Bench Mark, Compton Chamberlayne

taken 7 years ago, near to Compton Chamberlayne, Wiltshire, Great Britain

Bench Mark, Compton Chamberlayne
Bench Mark, Compton Chamberlayne
The bench mark is on the parapet of the bridge over a small tributary stream of the River Nadder. For a wider view SU0230 : Bridge near Compton Chamberlayne and for information about the cut mark LinkExternal link
A bench mark is an Ordnance Survey arrowhead sign found on walls, bridges, churches and specially erected triangulation pillars where the altitude above sea-level has been accurately measured by surveyors. The arrowhead points to a horizontal line above it which marks the exact altitude.
With rivets and pivots there is no datum (horizontal line) cut, the pointed-to horizontal surface defining the datum height.
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SU0230, 37 images   (more nearby )
Photographer
  (find more nearby)
Date Taken
Thursday, 17 June, 2010   (more nearby)
Submitted
Friday, 18 June, 2010
Category
Bench Mark   (more nearby)
Subject Location
OSGB36: geotagged! SU 0273 3066 [10m precision]
WGS84: 51:4.5156N 1:57.7445W
Camera Location
OSGB36: geotagged! SU 0273 3066
View Direction
North-northwest (about 337 degrees)
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