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OSBM Bolt: Burwick (South Ronaldsay) (Transfer Bolt) 
OSBM Bolt, rock, top of cliff, 73.0m W of fence junction - new 1978.
Location
Grid reference: ND 4362 8447.
Landranger 7: Orkney - Southern Isles.
Structure: Rock outcrop.
Waypoint: OS2072.
The nearest fundamental bench mark is Duncansby Head, 14.49km to the southwest.
Location
Grid reference: ND 4362 8447.
Landranger 7: Orkney - Southern Isles.
Structure: Rock outcrop.
Waypoint: OS2072.
The nearest fundamental bench mark is Duncansby Head, 14.49km to the southwest.
If you have any corrections or additions to this record, please let us know.