- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 52°8'2"N 4°23'51"W
- Eastings/Northings: 235992, 251111
- OS Grid: SN359511
- Mapcode Local: GBR DB.7PTY
- Mapcode Global: VH3K2.QMGJ
Location and coordinates are for the approximate centre of Allt Dderw within this administrative area.
Geographic features and populated places may cross administrative borders.