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OSBM Bolt 
OSBM Bolt on concrete block at junction of hedges, NW side of road.
Location
Grid reference: SN 1697 4456.
Landranger 145: Cardigan & Mynydd Preseli.
Structure: Concrete block.
Waypoint: OS0617.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Cardigan,
4.18km 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 Haverfordwest to Cardigan levelling line. The surveyor's description was OSBM Bolt on concrete block at junction of hedges, NW side of road.
Location
Grid reference: SN 1697 4456.
Landranger 145: Cardigan & Mynydd Preseli.
Structure: Concrete block.
Waypoint: OS0617.
Neighbouring Flush Brackets
| S7801 | Parc-y-prat 362.49m to the northeast. |
| S7802 | Pantygrwndy 997.25m to the southwest. |
| S0558 | Cardigan, Town Hall 1.81km to the northeast. |
| 11880 | Pen-y-bryn, Baptist Chapel 1.85km to the southeast. |
| S0557 | Cardigan, St Marys Old School Hall 1.87km to the northeast. |
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Haverfordwest to Cardigan levelling line. The surveyor's description was OSBM Bolt on concrete block at junction of hedges, NW side of road.
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