- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°52'43"N 4°38'47"W
- Eastings/Northings: 217932, 223327
- OS Grid: SN179233
- Mapcode Local: GBR D0.RVGG
- Mapcode Global: VH2NV.D1XM
Location and coordinates are for the approximate centre of Allt Gilfach-fawr within this administrative area.
Geographic features and populated places may cross administrative borders.