- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°0'59"N 3°31'23"W
- Eastings/Northings: 295568, 236423
- OS Grid: SN955364
- Mapcode Local: GBR YH.H4QN
- Mapcode Global: VH5F1.WL92
Location and coordinates are for the approximate centre of Llyn Dwr within this administrative area.
Geographic features and populated places may cross administrative borders.