guest [
OSBM Bolt 
OSBM Bolt on living rock.
Location
Grid reference: NC 5785 0494.
Landranger 16: Lairg & Loch Shin, Loch Naver.
Structure: Rock outcrop.
Waypoint: OS2020.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Lairg (1946),
2.41km to the north.
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Ledmore to Lairg levelling line. The surveyor's description was OSBM Bolt on living rock.
Location
Grid reference: NC 5785 0494.
Landranger 16: Lairg & Loch Shin, Loch Naver.
Structure: Rock outcrop.
Waypoint: OS2020.
Neighbouring Flush Brackets
| G1921 | Lairg, Bridge End House 1.07km to the north. |
| G1850 | Lairg, Station 1.11km to the southeast. |
| G1920 | Claonel 1.26km to the west. |
| G1849 | Lairg, Sutherland Arms Hotel 1.49km to the north. |
| G1851 | Achinduich 5.02km 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 Ledmore to Lairg levelling line. The surveyor's description was OSBM Bolt on living rock.
If you have any corrections or additions to this record, please let us know.