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Cut Mark: Three Salmons Inn 
Old B.M. on the Three Salmons Inn, 8 chains S.E. of Llantina [2GL]; THREE SALMONS INN N SIDE RD SW FACE 4.9M W ANG (165.0888m ODN, 0.6m AGL).
Location
Grid reference: SO 3991 1937.
Landranger 161: Abergavenny & The Black Mountains.
Structure: Pub / Hotel.
Waypoint: BM2569.
Neighbouring Bench Marks
The nearest fundamental bench mark is Abergavenny,
9.29km to the southwest.
Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 541.6370 feet [165.0910 metres] above mean sea level (Newlyn datum). It was included as a side level on the Brampton Abbots to Abergavenny levelling line. The surveyor's description was Old B.M. on the Three Salmons Inn, 8 chains S.E. of Llantina.
Location
Grid reference: SO 3991 1937.
Landranger 161: Abergavenny & The Black Mountains.
Structure: Pub / Hotel.
Waypoint: BM2569.
Neighbouring Bench Marks
| BM | Cross Ash 854.28m to the northeast. |
| BM | Llanvetherine, Church 4.13km to the southwest. |
Second Geodetic Levelling, England & Wales (1912-21)
This bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 541.6370 feet [165.0910 metres] above mean sea level (Newlyn datum). It was included as a side level on the Brampton Abbots to Abergavenny levelling line. The surveyor's description was Old B.M. on the Three Salmons Inn, 8 chains S.E. of Llantina.
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