- Category: Geographic Feature
- Type: Cirque or Hollow
- Latitude/Longitude: 53°8'38"N 3°56'33"W
- Eastings/Northings: 270167, 362514
- OS Grid: SH701625
- Mapcode Local: GBR 5Y.5W7F
- Mapcode Global: WH54Q.D7TN
Location and coordinates are for the approximate centre of Cwm Bychan within this administrative area.
Geographic features and populated places may cross administrative borders.