OSBM Bolt   

OSBM Bolt on culvert at fence junction, S side of lane [3GL].

Location
Grid reference: SS 5767 9217.
Landranger 159: Swansea & Gower, Carmarthen.
Structure: Culvert.
Waypoint: OS0768.

Neighbouring Flush Brackets

G3820	Ty Bach 1.21km to the northwest.
G3821	Three Crosses, School 2.03km to the north.
G3819	Kittle Hill Farm 2.48km to the south.
S1178	Vennaway 2.88km to the southwest.
G3818	Northway 2.89km to the south.

The nearest fundamental bench mark is Bishopston, 2.86km to the south.

Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Bishopston to Carmarthen levelling line. The surveyor's description was OSBM Bolt on culvert at fence junction, S side of lane.