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OSBM Bolt 
OSBM Bolt in rock of culvert, 6' NW from SW side of road & 55' NW of opposite hedge junction [3GL].
Location
Grid reference: NZ 1865 0873.
Landranger 92: Barnard Castle & surrounding area.
Structure: Culvert.
Waypoint: OS0643.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Forcett,
3.78km 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 in rock of culvert, 6' NW from SW side of road & 55' NW of opposite hedge junction.
Location
Grid reference: NZ 1865 0873.
Landranger 92: Barnard Castle & surrounding area.
Structure: Culvert.
Waypoint: OS0643.
Neighbouring Flush Brackets
| 2182 | Melsonby, School 1.04km to the east. |
| 2183 | Carkin Grange 1.29km to the northwest. |
| 2181 | Melsonby 1.57km to the east. |
| 2180 | Melsonby 2.23km to the east. |
| 2179 | Little Hangbank Bridge 2.93km to the east. |
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 in rock of culvert, 6' NW from SW side of road & 55' NW of opposite hedge junction.
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