OSBM Bolt: Miford Haven, Pier 

OSBM BOLT WALL W SIDE RD N END PIER ANG FENCE (7.6850m ODN, 0.3m below ground level, 2nd order, levelled 1978, verified 1986).
Location
Grid reference: SM 9183 0494.
Landranger 157: St David's & Haverfordwest.
Landranger 158: Tenby & Pembroke.
Structure: Unknown.
Waypoint: OS2865.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Haverfordwest (1969),
11.86km to the northeast.
Location
Grid reference: SM 9183 0494.
Landranger 157: St David's & Haverfordwest.
Landranger 158: Tenby & Pembroke.
Structure: Unknown.
Waypoint: OS2865.
Neighbouring Flush Brackets
| G5100 | Milford Haven, Pill Road 1.59km to the northwest. |
| G4919 | West Popton Farm 2.02km to the southwest. |
| G4977 | Milford Haven Tide Gauge Aux 1 2.69km to the west. |
| G5099 | Steynton, Hayguardhay Farm 2.87km to the north. |
| G5101 | Rhoscrowther 3.16km to the southwest. |
If you have any corrections or additions to this record, please let us know.