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OSBM Bolt 
OSBM Bolt on culvert, SE side of road [3GL]; OSBM BOLT CUL SE SIDE RD NE SIDE STR.
Location
Grid reference: NN 2197 8616.
Landranger 34: Fort Augustus, Glen Albyn & Glen Roy.
Landranger 41: Ben Nevis, Fort William & Glen Coe.
Structure: Culvert.
Waypoint: OS1372.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Spean Bridge,
4.10km 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 Spean Bridge to Loch Tarff levelling line. The surveyor's description was OSBM Bolt on culvert, SE side of road.
Location
Grid reference: NN 2197 8616.
Landranger 34: Fort Augustus, Glen Albyn & Glen Roy.
Landranger 41: Ben Nevis, Fort William & Glen Coe.
Structure: Culvert.
Waypoint: OS1372.
Neighbouring Flush Brackets
| G1051 | Rathliesbeag 1.41km to the southwest. |
| G1052 | Allt Mairi 2.52km to the southwest. |
| G1053 | Spean Bridge 4.44km to the south. |
| G1167 | Aonachan 5.13km to the south. |
| G1054 | Inverroy 5.71km 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 Spean Bridge to Loch Tarff levelling line. The surveyor's description was OSBM Bolt on culvert, SE side of road.
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