1GL Bolt: Rough Field Head   

Bolt in N.E. angle of Rough Field Head [2GL] =?= CUT MARK: ROUGH FIELD HEAD NE ANG (365.5101m ODN, 0.8m AGL).

Location
Grid reference: SD 9989 3290.
Landranger 103: Blackburn & Burnley, Clitheroe & Skipton.
Structure: Unknown.
Waypoint: BT0758.

Neighbouring Bench Marks

BOLT	Bodkin 2.30km to the northeast.
BOLT	Pecket Well, Robin Hood Inn 3.43km to the south.
BM	Gorple Lower 5.47km to the west.
BM	Reaps 5.59km to the west.
BOLT	Hebden Bridge, Church 5.66km to the south.

The nearest fundamental bench mark is Greetland, 13.56km to the southeast.

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 1199.3510 feet [365.5622 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 Bolt in N.E. angle of Rough Field Head.