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OSBM Bolt 
OSBM Bolt on concrete block, NE side of road, 161' NW from hedge junction opposite [3GL].
Location
Grid reference: SN 0944 3878.
Landranger 145: Cardigan & Mynydd Preseli.
Structure: Concrete block.
Waypoint: OS0603.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Cardigan,
13.55km 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, NE side of road, 161' NW from hedge junction opposite.
Location
Grid reference: SN 0944 3878.
Landranger 145: Cardigan & Mynydd Preseli.
Structure: Concrete block.
Waypoint: OS0603.
Neighbouring Flush Brackets
| S7808 | Farchog, Capel Cana 659.24m to the northeast. |
| S7809 | Temple Bar 1.10km to the west. |
| S7807 | Dandderwen 1.27km to the east. |
| S7810 | by Pont Clydach 2.36km to the west. |
| S7806 | Henllan 2.85km 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, NE side of road, 161' NW from hedge junction opposite.
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