- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°51'50"N 3°22'31"W
- Eastings/Northings: 307500, 330500
- OS Grid: SJ075305
- Mapcode Local: GBR 6P.RNJN
- Mapcode Global: WH78M.38XQ
Location and coordinates are for the approximate centre of Nant y Llyn within this administrative area.
Geographic features and populated places may cross administrative borders.