- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°48'49"N 3°26'17"W
- Eastings/Northings: 303173, 324993
- OS Grid: SJ031249
- Mapcode Local: GBR 6L.VZ6J
- Mapcode Global: WH78S.5J2Q
Location and coordinates are for the approximate centre of Cwm Llêch within this administrative area.
Geographic features and populated places may cross administrative borders.