- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°57'28"N 3°31'56"W
- Eastings/Northings: 297156, 341149
- OS Grid: SH971411
- Mapcode Local: GBR 6H.KLDQ
- Mapcode Global: WH66T.QX2C
Location and coordinates are for the approximate centre of Cwm Cywen within this administrative area.
Geographic features and populated places may cross administrative borders.