Flush Bracket 878: Ynys-las 

Flush Bracket on N. face of stables, Ynys-las [2GL]; building, Ynys Las, 3.7m from N angle, NW face.
Location
Grid reference: SN 5686 1968.
Landranger 159: Swansea & Gower, Carmarthen.
Structure: Farm building.
Waypoint: FB878.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Carmarthen,
14.07km to the west.
Second Geodetic Levelling, England & Wales (1912-21)
This flush bracket was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 69.8880 feet [21.3019 metres] above mean sea level (Newlyn datum). It was included on the Carmarthen to Llandovery levelling line. The surveyor's description was Flush Bracket on N. face of stables, Ynys-las.
Third Geodetic Levelling, England & Wales (1950-68)
This flush bracket was used during the Third geodetic levelling, England & Wales. It was included on the Llandovery to Carmarthen levelling line.
Location
Grid reference: SN 5686 1968.
Landranger 159: Swansea & Gower, Carmarthen.
Structure: Farm building.
Waypoint: FB878.
Neighbouring Flush Brackets
| G2979 | Dryslwyn Cottage 1.46km to the west. |
| 877 | Dryslwyn Cottage 1.49km to the west. |
| 879 | Tollgate Cottage 2.20km to the east. |
| 876 | Ty-newydd 2.42km to the west. |
| 880 | Golden Grove Park, North Lodge 3.06km to the east. |
Second Geodetic Levelling, England & Wales (1912-21)
This flush bracket was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 69.8880 feet [21.3019 metres] above mean sea level (Newlyn datum). It was included on the Carmarthen to Llandovery levelling line. The surveyor's description was Flush Bracket on N. face of stables, Ynys-las.
Third Geodetic Levelling, England & Wales (1950-68)
This flush bracket was used during the Third geodetic levelling, England & Wales. It was included on the Llandovery to Carmarthen levelling line.
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