- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°4'20"N 3°48'38"W
- Eastings/Northings: 275993, 243095
- OS Grid: SN759430
- Mapcode Local: GBR Y3.CRD5
- Mapcode Global: VH4H7.W5SQ
Location and coordinates are for the approximate centre of Cwm-y-Rhaeadr within this administrative area.
Geographic features and populated places may cross administrative borders.