- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°55'51"N 4°31'56"W
- Eastings/Northings: 225996, 228851
- OS Grid: SN259288
- Mapcode Local: GBR D5.NDFY
- Mapcode Global: VH2NJ.DQBM
Location and coordinates are for the approximate centre of Allt Gilfachwen within this administrative area.
Geographic features and populated places may cross administrative borders.