- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°56'1"N 3°41'45"W
- Eastings/Northings: 283500, 227500
- OS Grid: SN835275
- Mapcode Local: GBR Y8.N9X8
- Mapcode Global: VH5FB.WNHF
Location and coordinates are for the approximate centre of Dwr Llydan within this administrative area.
Geographic features and populated places may cross administrative borders.