- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°46'2"N 3°52'34"W
- Eastings/Northings: 273500, 320500
- OS Grid: SH735205
- Mapcode Local: GBR 61.YLW4
- Mapcode Global: WH56H.FPCX
Location and coordinates are for the approximate centre of Llyn Cynwch within this administrative area.
Geographic features and populated places may cross administrative borders.