- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°11'43"N 3°37'57"W
- Eastings/Northings: 288500, 256500
- OS Grid: SN885565
- Mapcode Local: GBR YC.3TST
- Mapcode Global: VH5D6.Z2DT
Location and coordinates are for the approximate centre of Nant Gewyn within this administrative area.
Geographic features and populated places may cross administrative borders.