- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°52'15"N 3°40'44"W
- Eastings/Northings: 284500, 220500
- OS Grid: SN845205
- Mapcode Local: GBR Y9.S82T
- Mapcode Global: VH5FR.57XG
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.