OSBM Bolt: Primrose Gill 

OSBM Bolt on living rock, 5' N of wall on S side of Primrose Gill, 47' E from E side of road [3GL].
Location
Grid reference: NZ 1762 1070.
Landranger 92: Barnard Castle & surrounding area.
Structure: Rock outcrop.
Waypoint: OS0641.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Forcett,
1.65km to the north.
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Forcett to Northallerton levelling line. The surveyor's description was OSBM Bolt on living rock, 5' N of wall on S side of Primrose Gill, 47' E from E side of road.
Location
Grid reference: NZ 1762 1070.
Landranger 92: Barnard Castle & surrounding area.
Structure: Rock outcrop.
Waypoint: OS0641.
Neighbouring Flush Brackets
| 2184 | High Park 1.09km to the north. |
| G3191 | Sandwath House 1.10km to the north. |
| 2183 | Carkin Grange 1.34km to the south. |
| 2215 | By Forcett Park 2.00km to the north. |
| 2182 | Melsonby, School 3.00km to the southeast. |
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Forcett to Northallerton levelling line. The surveyor's description was OSBM Bolt on living rock, 5' N of wall on S side of Primrose Gill, 47' E from E side of road.
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