Helmsdale Fundamental Bench Mark   

Location
Grid reference: ND 0362 1570.
Landranger 17: Helmsdale & Strath of Kildonan.
GPS network passive station: H1ND0315.
Waypoint: FM7242.

Neighbouring Flush Brackets

G1987	Helmsdale, Church 740.00m to the west.
G1988	Helmsdale, Church 1.22km to the west.
G1989	Portgower, Old School House 3.77km to the southwest.
G4371	Westgarty Lodge 5.66km to the southwest.
G2097	Ousdale School 6.06km to the northeast.

The nearest fundamental bench mark is Lybster, 30.10km to the northeast.

Second Geodetic Levelling, Scotland (1936-52)
This fundamental bench mark was used during the Second geodetic levelling, Scotland, and was levelled with a height of 160.8196 feet [49.0178 metres] above mean sea level (Newlyn datum). It was included on the Helmsdale to Bonar Bridge and Lybster to Helmsdale levelling lines.

Third Geodetic Levelling, Scotland (1956-68)
This fundamental bench mark was used during the Third geodetic levelling, Scotland, and was levelled with a height of 160.8196 feet [49.0178 metres] above mean sea level (Newlyn datum). It was included on the Helmsdale to Tain and Lybster to Helmsdale levelling lines.