- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°47'47"N 3°53'27"W
- Eastings/Northings: 269686, 212550
- OS Grid: SN696125
- Mapcode Local: GBR Y0.Y3GB
- Mapcode Global: VH4JK.H3SQ
Location and coordinates are for the approximate centre of Cwm Garnant within this administrative area.
Geographic features and populated places may cross administrative borders.