- Category: Geographic Feature
- Type: Cirque or Hollow
- Latitude/Longitude: 53°4'44"N 4°4'14"W
- Eastings/Northings: 261397, 355541
- OS Grid: SH613555
- Mapcode Local: GBR 5S.B1MY
- Mapcode Global: WH54V.FVVW
Location and coordinates are for the approximate centre of Cwm Glas within this administrative area.
Geographic features and populated places may cross administrative borders.