- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°11'32"N 3°50'14"W
- Eastings/Northings: 274500, 256500
- OS Grid: SN745565
- Mapcode Local: GBR Y2.44S6
- Mapcode Global: VH4GN.F5N4
Location and coordinates are for the approximate centre of Llyn Berwyn within this administrative area.
Geographic features and populated places may cross administrative borders.