- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°55'21"N 3°50'38"W
- Eastings/Northings: 276132, 337728
- OS Grid: SH761377
- Mapcode Local: GBR 62.MW5Z
- Mapcode Global: WH55Q.XSQV
Location and coordinates are for the approximate centre of Llyn y Garn within this administrative area.
Geographic features and populated places may cross administrative borders.