- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°1'0"N 4°51'57"W
- Eastings/Northings: 203438, 239241
- OS Grid: SN034392
- Mapcode Local: GBR CQ.H1PG
- Mapcode Global: VH1QH.LKYV
Location and coordinates are for the approximate centre of Cwm Rhigian within this administrative area.
Geographic features and populated places may cross administrative borders.