- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°58'53"N 4°27'6"W
- Eastings/Northings: 235500, 345500
- OS Grid: SH355455
- Mapcode Local: GBR 58.JC26
- Mapcode Global: WH443.LBC4
Location and coordinates are for the approximate centre of Nant Gwrtheyrn within this administrative area.
Geographic features and populated places may cross administrative borders.