- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°49'42"N 3°58'58"W
- Eastings/Northings: 266500, 327500
- OS Grid: SH665275
- Mapcode Local: GBR 5W.TYT0
- Mapcode Global: WH567.S5KG
Location and coordinates are for the approximate centre of Llyn Cwmhosan within this administrative area.
Geographic features and populated places may cross administrative borders.