- Category: Geographic Feature
- Type: Cirque or Hollow
- Latitude/Longitude: 53°9'18"N 3°59'58"W
- Eastings/Northings: 266386, 363869
- OS Grid: SH663638
- Mapcode Local: GBR 5W.56WN
- Mapcode Global: WH54H.JYMJ
Location and coordinates are for the approximate centre of Cwmglas Bach within this administrative area.
Geographic features and populated places may cross administrative borders.