Ordnance Survey Benchmark - Aberystwyth, Southgate
Introduction
The photograph on this page of Ordnance Survey Benchmark - Aberystwyth, Southgate by N Scott as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk
Ordnance Survey Benchmark - Aberystwyth, Southgate
Image: © N Scott Taken: 13 Nov 2014
Ordnance Survey Benchmark (OSBM) used for levelling height above Ordnance Datum (OD). Height: 44.6400m OD (Newlyn). Mark verified by the Ordnance Survey in 1977. Description: WALL JUNC W SIDE ANTARON AVE E FACE. 0.8m above ground. 3rd Order BM. The mark was used on the Warrington to Pembroke Docks and Worcester to Aberystwyth lines of the First Primary Levelling of England & Wales in 1851-1852 and 1849-1855, respectively. It was levelled with a height of 146.461' above OD (Liverpool). Description: Mark on pier of gate opposite Aberystwyth South Turnpike-house, Piccadilly ; 2.55 ft. above surface. Page 533 of the abstract: http://www.trigtools.co.uk/data/1GL/1GLA_533.png (No. 610). Page 557 of the abstract: http://www.trigtools.co.uk/data/1GL/1GLA_557.png (No. 284). Close-up: Image
Images are licensed for reuse under creativecommons.org/licenses/by-sa/2.0
Image Location
Latitude
52.398699
Longitude
-4.069852