- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 52°55'16"N 4°22'24"W
- Eastings/Northings: 240522, 338616
- OS Grid: SH405386
- Mapcode Local: GBR 5D.N014
- Mapcode Global: WH44B.STJX
Location and coordinates are for the approximate centre of Gwinllan y Gromlech within this administrative area.
Geographic features and populated places may cross administrative borders.