- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°56'44"N 4°23'47"W
- Eastings/Northings: 235381, 230195
- OS Grid: SN353301
- Mapcode Local: GBR DB.MQ39
- Mapcode Global: VH3L1.RC26
Location and coordinates are for the approximate centre of Allt Penrhiw-gwiail within this administrative area.
Geographic features and populated places may cross administrative borders.