- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°51'12"N 3°38'57"W
- Eastings/Northings: 286500, 218500
- OS Grid: SN865185
- Mapcode Local: GBR YB.THF9
- Mapcode Global: VH5FR.PNLY
Location and coordinates are for the approximate centre of Nant Tywynni within this administrative area.
Geographic features and populated places may cross administrative borders.