- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°48'16"N 3°12'51"W
- Eastings/Northings: 316367, 212484
- OS Grid: SO163124
- Mapcode Local: GBR YX.XH9C
- Mapcode Global: VH6CN.7WJW
Location and coordinates are for the approximate centre of Cwm Carno within this administrative area.
Geographic features and populated places may cross administrative borders.