Ordnance Survey PA Bolt Benchmark - Orton Waterville, St. Mary's Church
Introduction
The photograph on this page of Ordnance Survey PA Bolt Benchmark - Orton Waterville, St. Mary's Church by N Scott as part of the Geograph project.
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Ordnance Survey PA Bolt Benchmark - Orton Waterville, St. Mary's Church
Image: © N Scott Taken: 25 Jul 2026
Ordnance Survey Benchmark (OSBM) used for levelling height above Ordnance Datum (OD). Height: 20.4300m OD (Newlyn). Mark verified by the Ordnance Survey in 1980. Description: PA BOLT ST MARYS CH BUTT N FACE NW ANG. 0.6m above ground. 3rd Order BM. TL 1561 9608 The bolt was included as a branch level from mark 133 on the Towcester to King's Lynn line of the First Primary Levelling of England & Wales in 1852. It was levelled with a height of 67.850’ above OD (Liverpool). Description: Overton Waterville Church. Bolt in buttress at North-west corner ; 2.42 ft. above surface. Page 314 of the abstract: https://www.bench-marks.org.uk/abstract/ew1gl/1GLA_314.png Context: Image
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Image Location
Latitude
52.550296
Longitude
-0.296247