guest [
OSBM Bolt 
OSBM Bolt in rock.
Location
Grid reference: NC 5749 1338.
Landranger 16: Lairg & Loch Shin, Loch Naver.
Structure: Rock outcrop.
Waypoint: OS1711.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Lairg (1950),
5.75km to the south.
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Lairg to Loch Naver levelling line. The surveyor's description was OSBM Bolt in rock.
Location
Grid reference: NC 5749 1338.
Landranger 16: Lairg & Loch Shin, Loch Naver.
Structure: Rock outcrop.
Waypoint: OS1711.
Neighbouring Flush Brackets
| S7768 | Colaboll ? 3.37km to the southwest. |
| S7767 | by West Shinness 5.00km to the west. |
| G1849 | Lairg, Sutherland Arms Hotel 7.07km to the south. |
| G1921 | Lairg, Bridge End House 7.40km to the south. |
| G1920 | Claonel 8.85km to the south. |
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Lairg to Loch Naver levelling line. The surveyor's description was OSBM Bolt in rock.
If you have any corrections or additions to this record, please let us know.