- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°50'33"N 3°46'46"W
- Eastings/Northings: 277500, 217500
- OS Grid: SN775175
- Mapcode Local: GBR Y5.V13V
- Mapcode Global: VH5FP.FYRB
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.