- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°16'10"N 3°27'34"W
- Eastings/Northings: 300500, 264500
- OS Grid: SO005645
- Mapcode Local: GBR 9L.Z2X6
- Mapcode Global: VH5CX.Z6FY
Location and coordinates are for the approximate centre of Nant Treflyn within this administrative area.
Geographic features and populated places may cross administrative borders.