- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°43'38"N 3°31'9"W
- Eastings/Northings: 297500, 315500
- OS Grid: SH975155
- Mapcode Local: GBR 9J.165R
- Mapcode Global: WH67Z.XPCZ
Location and coordinates are for the approximate centre of Nant y Dwyslyn within this administrative area.
Geographic features and populated places may cross administrative borders.