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OSBM Bolt 
OSBM Bolt on culvert, NE side of road, junction of Martinlees Sike Burn.
Location
Grid reference: NT 6570 0797.
Landranger 80: Cheviot Hills & Kielder Water.
Structure: Unknown.
Waypoint: OS0944.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Hawick,
17.36km to the west.
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Hexham to Hawick levelling line. The surveyor's description was OSBM Bolt on culvert, NE side of road, junction of Martinlees Sike Burn.
Location
Grid reference: NT 6570 0797.
Landranger 80: Cheviot Hills & Kielder Water.
Structure: Unknown.
Waypoint: OS0944.
Neighbouring Flush Brackets
| 11414 | Charlies Hill (A6088) 894.71m to the northwest. |
| 11281 | Southdean 2.73km to the northwest. |
| 11415 | Southdean, Jed Water Bridge 3.36km to the northwest. |
| 11416 | Chesters 4.26km to the northwest. |
| 11417 | Doorpool 5.54km to the northwest. |
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Hexham to Hawick levelling line. The surveyor's description was OSBM Bolt on culvert, NE side of road, junction of Martinlees Sike Burn.
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