- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°55'42"N 3°5'12"W
- Eastings/Northings: 325376, 226111
- OS Grid: SO253261
- Mapcode Local: GBR F2.NQZ5
- Mapcode Global: VH78L.GS1H
Location and coordinates are for the approximate centre of Cwm Ddeunant within this administrative area.
Geographic features and populated places may cross administrative borders.