- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°50'45"N 3°31'56"W
- Eastings/Northings: 296898, 328723
- OS Grid: SH968287
- Mapcode Local: GBR 6H.SLG3
- Mapcode Global: WH67D.QQ4G
Location and coordinates are for the approximate centre of Cwm Gwyn within this administrative area.
Geographic features and populated places may cross administrative borders.