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OSBM Bolt 
OSBM Bolt on boulder at culvert, SE side of road, 94' NE from hedge junction.
Location
Grid reference: SN 6801 9459.
Landranger 135: Aberystwyth & Machynlleth.
Structure: Other.
Waypoint: OS0321.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Machynlleth,
9.58km 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 Aberystwyth to Machynlleth levelling line. The surveyor's description was OSBM Bolt on boulder at culvert, SE side of road, 94' NE from hedge junction.
Logged Visits
Logged on 29th August 2006 by superswifteagle. Grid reference: SN 6801 9459. Condition: Probably destroyed.
Found culvert but no sign of boulder. Has culvert been renewed at some point since the bolt was put in?
Location
Grid reference: SN 6801 9459.
Landranger 135: Aberystwyth & Machynlleth.
Structure: Other.
Waypoint: OS0321.
Neighbouring Flush Brackets
| S0459 | Eglwys Fach 1.11km to the northeast. |
| G2011 | Tre'r-ddôl 2.98km to the southwest. |
| 11001 | Fron-gôch 2.99km to the northwest. |
| S0460 | Tal-y-bont 5.67km to the southwest. |
| S0347 | Pennal, School 6.11km 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 Aberystwyth to Machynlleth levelling line. The surveyor's description was OSBM Bolt on boulder at culvert, SE side of road, 94' NE from hedge junction.
Logged Visits
Logged on 29th August 2006 by superswifteagle. Grid reference: SN 6801 9459. Condition: Probably destroyed.
Found culvert but no sign of boulder. Has culvert been renewed at some point since the bolt was put in?
If you have any corrections or additions to this record, please let us know.