2013
SN4120 : Ordnance Survey Benchmark - Carmarthen, 11 Guildhall Square
taken 11 years ago, near to Carmarthen/Caerfyrddin, Carmarthenshire/Sir Gaerfyrddin, Wales
Ordnance Survey Benchmark - Carmarthen, 11 Guildhall Square
Ordnance Survey Benchmark (OSBM) used for levelling height above Ordnance Datum (OD).
Height: 14.9657m OD (Newlyn). Mark verified by the Ordnance Survey in 1953. Description: NBM BLDG N ANG NO11 GUILDHALL SQ. 0.6m above ground. 3rd Order BM.
The mark replaced the 1GL mark on the corner of Red St., opposite.
Context:
SN4120 : Ordnance Survey Benchmark - Carmarthen, 11 Guildhall Square
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