- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°49'31"N 3°34'55"W
- Eastings/Northings: 293500, 326500
- OS Grid: SH935265
- Mapcode Local: GBR 6F.V0C7
- Mapcode Global: WH67K.Y7GR
Location and coordinates are for the approximate centre of Nant Nadroedd Fawr within this administrative area.
Geographic features and populated places may cross administrative borders.