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OSBM Bolt 
OSBM Bolt in rock [3GL].
Location
Grid reference: NG 8687 2721.
Landranger 33: Loch Alsh, Glen Shiel & Loch Hourn.
Structure: Rock outcrop.
Waypoint: OS1229.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Dornie,
2.11km to the southeast.
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Dornie to Achnasheen and Spean Bridge to Dornie levelling lines. The surveyor's description was OSBM Bolt in rock.
Location
Grid reference: NG 8687 2721.
Landranger 33: Loch Alsh, Glen Shiel & Loch Hourn.
Structure: Rock outcrop.
Waypoint: OS1229.
Neighbouring Flush Brackets
| G4431 | Nostie 1.02km to the west. |
| G1750 | Dornie, by Loch Duich Hotel 1.14km to the southeast. |
| G4432 | Nostie Bridge Power Station 1.65km to the west. |
| G4433 | By Lochalsh Dam 2.56km to the northwest. |
| G1751 | Carr Brae 3.56km to the southeast. |
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Dornie to Achnasheen and Spean Bridge to Dornie levelling lines. The surveyor's description was OSBM Bolt in rock.
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