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OSBM Bolt 
OSBM Bolt on culvert N side of A6088 junction at Cat Cleugh.
Location
Grid reference: NT 6809 0711.
Landranger 80: Cheviot Hills & Kielder Water.
Structure: Unknown.
Waypoint: OS0940.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Hawick,
19.90km 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 N side of A6088 junction at Cat Cleugh.
Location
Grid reference: NT 6809 0711.
Landranger 80: Cheviot Hills & Kielder Water.
Structure: Unknown.
Waypoint: OS0940.
Neighbouring Flush Brackets
| 11414 | Charlies Hill (A6088) 3.43km to the west. |
| 11282 | Whitelee Bridge 3.88km to the southeast. |
| 11281 | Southdean 5.27km to the west. |
| 11413 | Ramshope Farm 5.84km to the southeast. |
| 11415 | Southdean, Jed Water Bridge 5.89km 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 N side of A6088 junction at Cat Cleugh.
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