Two Ordnance Survey Benchmarks
Introduction
The photograph on this page of Two Ordnance Survey Benchmarks by Adrian Dust 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.
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Image: © Adrian Dust Taken: 17 Sep 2018
These OS Benchmarks can be found on the SW face of Christ Church. The one on the left is a 1GL Bolt and the newer cut mark is on the right. It marks a point 9.199m above mean sea level.