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Cut Mark: Bulmer Church 
Old B.M. on buttress at N.W. angle of Bulmer Church Tower [2GL]; CUT MARK: ST MARTINS CH NW ANG W FACE (88.2650m ODN, 0.3m AGL, 1st order).
Location
Grid reference: SE 6992 6763.
Landranger 100: Malton & Pickering, Helmsley & Easingwold.
Structure: Church.
Waypoint: BM2529.
Neighbouring Bench Marks
The nearest fundamental bench mark is Bulmer,
581.38m to the northeast.
Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 289.5880 feet [88.2664 metres] above mean sea level (Newlyn datum). It was included as a side level on the Bulmer to Northallerton levelling line. The surveyor's description was Old B.M. on buttress at N.W. angle of Bulmer Church Tower.
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales.
Location
Grid reference: SE 6992 6763.
Landranger 100: Malton & Pickering, Helmsley & Easingwold.
Structure: Church.
Waypoint: BM2529.
Neighbouring Bench Marks
| BM | Marton-in-the-Forest, Church 9.75km to the west. |
Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 289.5880 feet [88.2664 metres] above mean sea level (Newlyn datum). It was included as a side level on the Bulmer to Northallerton levelling line. The surveyor's description was Old B.M. on buttress at N.W. angle of Bulmer Church Tower.
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales.
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