OSBM Bolt: Higham Lock 

OSBM BOLT HIGHAM LOCK W SIDE R NENE N GATE W ANG (3rd order).
Location
Grid reference: SP 9555 7003.
Landranger 141: Kettering and Corby.
Landranger 153: Bedford & Huntingdon, St Neots & Biggleswade.
Structure: Unknown.
Waypoint: OS2522.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Cranford,
9.50km to the northwest.
Location
Grid reference: SP 9555 7003.
Landranger 141: Kettering and Corby.
Landranger 153: Bedford & Huntingdon, St Neots & Biggleswade.
Structure: Unknown.
Waypoint: OS2522.
Neighbouring Flush Brackets
| 11041 | Irthlingborough, Alsta Works 661.89m to the north. |
| S8590 | Higham Ferrers 943.66m to the southeast. |
| 11092 | Chelveston, Higham Road 3.56km to the east. |
| G3612 | Finedon 3.99km to the northwest. |
| G3611 | Finedon 4.09km to the northwest. |
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