- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°11'23"N 3°59'53"W
- Eastings/Northings: 263500, 256500
- OS Grid: SN635565
- Mapcode Local: GBR DW.40XF
- Mapcode Global: VH4GK.N744
Location and coordinates are for the approximate centre of Nant Bryn-maen within this administrative area.
Geographic features and populated places may cross administrative borders.