- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°56'51"N 4°7'40"W
- Eastings/Northings: 253848, 229832
- OS Grid: SN538298
- Mapcode Local: GBR DP.MJQC
- Mapcode Global: VH4HN.D9LQ
Location and coordinates are for the approximate centre of Allt Ynys-Brechfa within this administrative area.
Geographic features and populated places may cross administrative borders.