- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°20'26"N 3°37'11"W
- Eastings/Northings: 289731, 272635
- OS Grid: SN897726
- Mapcode Local: GBR 9C.TRCD
- Mapcode Global: VH5CG.6FLG
Location and coordinates are for the approximate centre of Cwm Nant-y-Ffald within this administrative area.
Geographic features and populated places may cross administrative borders.