1GL Bolt: Conisbrough, Church   

St. Peter's Church, Conisbrough. Bolt in West face of tower ; 4.16 ft. above surface [1GL, Huddersfield to Selby, Branch Levelling from Mark No. 121(i)] =??= P A BOLT ST PETERS CH 0.9M N SW BUTT TWR W FACE (63.3466m ODN, 1.9m AGL).

Location
Grid reference: SK 5120 9874.
Landranger 111: Sheffield & Doncaster, Rotherham, Barnsley & Thorne.
Structure: Church.
Waypoint: BT0994.

Neighbouring Bench Marks

BM	Clifton 2.62km to the south.
BOLT	Hooton Roberts, Church 3.27km to the southwest.
BM	Market Warsop, Butt Lane 5.55km to the east.
BOLT	Thrybergh, Church 5.58km to the southwest.
BM	Marr,Marr Hall Cottages 6.52km to the north.

The nearest fundamental bench mark is Broomhead Moor, 26.98km to the west.

First Primary Levelling, England & Wales (1840-60)
This bench mark was used during the First primary levelling, England & Wales, and was levelled with a height of 211.5230 feet [64.4722 metres] above mean sea level (Liverpool datum). It was included as a side level on the Huddersfield to Selby levelling line. The surveyor's description was St. Peter's Church, Conisbrough. Bolt in West face of tower ; 4.16 ft. above surface.