- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°25'11"N 3°34'23"W
- Eastings/Northings: 290715, 170163
- OS Grid: SS907701
- Mapcode Local: GBR HD.PXMF
- Mapcode Global: VH5HY.0KXV
Location and coordinates are for the approximate centre of Cwm Nash within this administrative area.
Geographic features and populated places may cross administrative borders.