- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°12'34"N 3°26'38"W
- Eastings/Northings: 301436, 257814
- OS Grid: SO014578
- Mapcode Local: GBR YM.2SFR
- Mapcode Global: VH69L.8Q6D
Location and coordinates are for the approximate centre of Llyn Glas within this administrative area.
Geographic features and populated places may cross administrative borders.