- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°50'54"N 3°8'14"W
- Eastings/Northings: 323500, 328500
- OS Grid: SJ235285
- Mapcode Local: GBR 70.SLD4
- Mapcode Global: WH78Q.SN6L
Location and coordinates are for the approximate centre of Llyn Rhuddwyn within this administrative area.
Geographic features and populated places may cross administrative borders.