- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°58'46"N 3°38'21"W
- Eastings/Northings: 287500, 232500
- OS Grid: SN875325
- Mapcode Local: GBR YB.KKWT
- Mapcode Global: VH5F5.VHVV
Location and coordinates are for the approximate centre of Nant Gwydderig within this administrative area.
Geographic features and populated places may cross administrative borders.