- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°43'58"N 3°38'20"W
- Eastings/Northings: 286915, 205057
- OS Grid: SN869050
- Mapcode Local: GBR H9.25D7
- Mapcode Global: VH5GB.WQ30
Location and coordinates are for the approximate centre of Cwm Gwrach within this administrative area.
Geographic features and populated places may cross administrative borders.