Cut Mark: Ryburn House   

Old B.M. on coach house, S.E. end of Ryburn House [2GL] - estimated location.

Location
Grid reference: SE 0426 2028.
Landranger 104: Leeds & Bradford, Harrogate & Ilkley.
Structure: Stable.
Waypoint: BM2573.

Neighbouring Bench Marks

BM	Ripponden, Brig Royd 393.57m to the southwest.
BM	Kebroyd Bridge 1.06km to the north.
BM	Cooper Fields, Milestone 4.23km to the north.
BOLT	Luddendenfoot Bridge 4.84km to the north.
BOLT	Oxygrains Bridge 5.89km to the southwest.

The nearest fundamental bench mark is Greetland, 2.57km to the east.

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 412.4890 feet [125.7266 metres] above mean sea level (Newlyn datum). It was included as a side level on the Greetland to Skipton levelling line. The surveyor's description was Old B.M. on coach house, S.E. end of Ryburn House.