- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°1'35"N 3°31'10"W
- Eastings/Northings: 295839, 237534
- OS Grid: SN958375
- Mapcode Local: GBR YH.GKM8
- Mapcode Global: VH5F1.YB6D
Location and coordinates are for the approximate centre of Cwm Nant y Gaseg within this administrative area.
Geographic features and populated places may cross administrative borders.