- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°26'7"N 3°16'11"W
- Eastings/Northings: 313766, 282698
- OS Grid: SO137826
- Mapcode Local: GBR 9V.MMM5
- Mapcode Global: VH68Q.81PV
Location and coordinates are for the approximate centre of Cwm Gwyn within this administrative area.
Geographic features and populated places may cross administrative borders.