- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°55'49"N 3°9'40"W
- Eastings/Northings: 320256, 226399
- OS Grid: SO202263
- Mapcode Local: GBR YZ.NJJB
- Mapcode Global: VH6C3.5R50
Location and coordinates are for the approximate centre of Cwm Nant-y-Fedw within this administrative area.
Geographic features and populated places may cross administrative borders.