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OSBM Bolt 
OSBM Bolt on W side of road, 12' S of stream [destroyed].
Location
Grid reference: TF 4877 8524.
Landranger 122: Skegness & Horncastle.
Structure: Other.
Waypoint: OS0093.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Patrington,
41.04km 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 Boston to Immingham levelling line. The surveyor's description was OSBM Bolt on W side of road, 12' S of stream [destroyed].
Location
Grid reference: TF 4877 8524.
Landranger 122: Skegness & Horncastle.
Structure: Other.
Waypoint: OS0093.
Neighbouring Flush Brackets
| G4687 | Mablethorpe, Primary School 1.36km to the east. |
| G4694 | The Hollies 1.76km to the north. |
| S0607 | Mablethorpe, Louth Hotel 1.90km to the east. |
| G4686 | Trusthorpe, Radio Station 3.17km to the southeast. |
| S0606 | Theddlethorpe St Helen 4.45km 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 Boston to Immingham levelling line. The surveyor's description was OSBM Bolt on W side of road, 12' S of stream [destroyed].
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