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OSBM Bolt 
OSBM Bolt on wall.
Location
Grid reference: ND 0659 1994.
Landranger 17: Helmsdale & Strath of Kildonan.
Structure: Unknown.
Waypoint: OS1949.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Helmsdale,
5.18km to the southwest.
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Lybster to Helmsdale levelling line. The surveyor's description was OSBM Bolt on wall.
Location
Grid reference: ND 0659 1994.
Landranger 17: Helmsdale & Strath of Kildonan.
Structure: Unknown.
Waypoint: OS1949.
Neighbouring Flush Brackets
| G2097 | Ousdale School 975.29m to the northeast. |
| G1987 | Helmsdale, Church 5.79km to the southwest. |
| G2096 | Berriedale, Ivy Cottage 5.92km to the northeast. |
| G1988 | Helmsdale, Church 6.16km to the southwest. |
| G2095 | Borgie, Sunnybrae 6.59km to the northeast. |
Third Geodetic Levelling, Scotland (1956-68)
This bench mark was used during the Third geodetic levelling, Scotland. It was included on the Lybster to Helmsdale levelling line. The surveyor's description was OSBM Bolt on wall.
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