- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°40'20"N 3°41'14"W
- Eastings/Northings: 285999, 309638
- OS Grid: SH859096
- Mapcode Local: GBR 99.4LRS
- Mapcode Global: WH689.B3B3
Location and coordinates are for the approximate centre of Cwm Gast within this administrative area.
Geographic features and populated places may cross administrative borders.