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OSBM Bolt 
OSBM Bolt on wall [3GL].
Location
Grid reference: NH 1915 5927.
Landranger 25: Glen Carron & Glen Affric.
Structure: Unknown.
Waypoint: OS1988.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Achnasheen,
3.38km 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 Achnasheen to Contin levelling line. The surveyor's description was OSBM Bolt on wall.
Location
Grid reference: NH 1915 5927.
Landranger 25: Glen Carron & Glen Affric.
Structure: Unknown.
Waypoint: OS1988.
Neighbouring Flush Brackets
| G1730 | By Dosmuckeran 1.53km to the northeast. |
| G1731 | Strath Bran 1.62km to the west. |
| G1729 | Rosebank 4.23km to the northeast. |
| G1728 | Achanalt Hotel 7.25km to the east. |
| G1727 | Viaduct Plantation 8.84km to the east. |
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Achnasheen to Contin levelling line. The surveyor's description was OSBM Bolt on wall.
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