- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°59'29"N 3°54'36"W
- Eastings/Northings: 271877, 345510
- OS Grid: SH718455
- Mapcode Local: GBR 5Z.HJMM
- Mapcode Global: WH55H.X24D
Location and coordinates are for the approximate centre of Llyn Glâs within this administrative area.
Geographic features and populated places may cross administrative borders.