- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°35'59"N 3°54'5"W
- Eastings/Northings: 271307, 301928
- OS Grid: SH713019
- Mapcode Local: GBR 90.980K
- Mapcode Global: WH578.1XC7
Location and coordinates are for the approximate centre of Cwm Rhonwydd within this administrative area.
Geographic features and populated places may cross administrative borders.