- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°35'20"N 3°31'14"W
- Eastings/Northings: 294743, 188886
- OS Grid: SS947888
- Mapcode Local: GBR HG.C53X
- Mapcode Global: VH5H5.XBL6
Location and coordinates are for the approximate centre of Cwm y Ffynnon within this administrative area.
Geographic features and populated places may cross administrative borders.