- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°4'13"N 4°5'26"W
- Eastings/Northings: 260029, 354604
- OS Grid: SH600546
- Mapcode Local: GBR 5R.BNS6
- Mapcode Global: WH551.43C2
Location and coordinates are for the approximate centre of Llyn Glas within this administrative area.
Geographic features and populated places may cross administrative borders.