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OSBM Bolt 
OSBM Bolt on bridge abutment [3GL].
Location
Grid reference: NH 1180 1065.
Landranger 34: Fort Augustus, Glen Albyn & Glen Roy.
Structure: Bridge.
Waypoint: OS1664.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Glen Cluanie,
6.01km to the west.
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Glen Cluanie to Glen Moriston levelling line. The surveyor's description was OSBM Bolt on bridge abutment.
Location
Grid reference: NH 1180 1065.
Landranger 34: Fort Augustus, Glen Albyn & Glen Roy.
Structure: Bridge.
Waypoint: OS1664.
Neighbouring Flush Brackets
| G1769 | by Cluanie Lodge 2.49km to the west. |
| G1768 | by Loch Cluanie 3.59km to the west. |
| G1767 | Cluanie Inn 4.32km to the west. |
| G1770 | Allt Mor Bridge 5.24km to the south. |
| G1766 | A87(T) Road Bridge 6.16km to the west. |
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Glen Cluanie to Glen Moriston levelling line. The surveyor's description was OSBM Bolt on bridge abutment.
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