- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°53'13"N 4°45'1"W
- Eastings/Northings: 210814, 224514
- OS Grid: SN108245
- Mapcode Local: GBR CW.R6BG
- Mapcode Global: VH2NL.LTZS
Location and coordinates are for the approximate centre of Allt Llyn-dyfrion within this administrative area.
Geographic features and populated places may cross administrative borders.