- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°12'8"N 3°46'45"W
- Eastings/Northings: 278500, 257500
- OS Grid: SN785575
- Mapcode Local: GBR Y5.3F6L
- Mapcode Global: VH5CY.FXX3
Location and coordinates are for the approximate centre of Nant y Gerwyn within this administrative area.
Geographic features and populated places may cross administrative borders.