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OSBM Bolt 
OSBM Bolt on culvert.
Location
Grid reference: ND 0614 1890.
Landranger 17: Helmsdale & Strath of Kildonan.
Structure: Culvert.
Waypoint: OS1950.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Helmsdale,
4.07km 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 culvert.
Location
Grid reference: ND 0614 1890.
Landranger 17: Helmsdale & Strath of Kildonan.
Structure: Culvert.
Waypoint: OS1950.
Neighbouring Flush Brackets
| G2097 | Ousdale School 1.99km to the northeast. |
| G1987 | Helmsdale, Church 4.71km to the southwest. |
| G1988 | Helmsdale, Church 5.10km to the southwest. |
| G2096 | Berriedale, Ivy Cottage 6.85km to the northeast. |
| G2095 | Borgie, Sunnybrae 7.54km 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 culvert.
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