- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 52°5'13"N 4°15'23"W
- Eastings/Northings: 245500, 245611
- OS Grid: SN455456
- Mapcode Local: GBR DJ.BNVR
- Mapcode Global: VH3KC.5SNT
Location and coordinates are for the approximate centre of Allt Pyllau'r-bryn within this administrative area.
Geographic features and populated places may cross administrative borders.