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OSBM Bolt: by Graemeshall (Orkney) 
OSBM Bolt, sea wall, S side of road, 2.2m from E end.
Location
Grid reference: HY 4831 0127.
Landranger 6: Orkney - Mainland.
Landranger 7: Orkney - Southern Isles.
Structure: Unknown.
Waypoint: OS2078.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Duncansby Head,
31.80km to the south.
Logged Visits
Logged on 25th August 2007 by jochta. Condition: Good.
As described partly hidden by grass but easily spotted. http://maps.jochta.com/benchmarks.php?id=257
Logged on 5th May 2007 by iainmac. Condition: Couldn't find it.
Part of wall may have been lost. May be buried.
Location
Grid reference: HY 4831 0127.
Landranger 6: Orkney - Mainland.
Landranger 7: Orkney - Southern Isles.
Structure: Unknown.
Waypoint: OS2078.
Neighbouring Flush Brackets
| 12112 | Kirkwall (Orkney) 8.73km to the north. |
| 12151 | Hobbister (Orkney) 11.14km to the northwest. |
Logged Visits
Logged on 25th August 2007 by jochta. Condition: Good.
As described partly hidden by grass but easily spotted. http://maps.jochta.com/benchmarks.php?id=257
Logged on 5th May 2007 by iainmac. Condition: Couldn't find it.
Part of wall may have been lost. May be buried.
If you have any corrections or additions to this record, please let us know.