- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°50'56"N 3°12'39"W
- Eastings/Northings: 316683, 217396
- OS Grid: SO166173
- Mapcode Local: GBR YX.TQ52
- Mapcode Global: VH6CG.9SBH
Location and coordinates are for the approximate centre of Cwm Waun-Llech within this administrative area.
Geographic features and populated places may cross administrative borders.