- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°58'53"N 4°0'21"W
- Eastings/Northings: 262336, 233341
- OS Grid: SN623333
- Mapcode Local: GBR DV.KC0T
- Mapcode Global: VH4HJ.JG2D
Location and coordinates are for the approximate centre of Allt Cil-y-llyn-fawr within this administrative area.
Geographic features and populated places may cross administrative borders.