- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°59'57"N 3°58'32"W
- Eastings/Northings: 267500, 346500
- OS Grid: SH675465
- Mapcode Local: GBR 5X.H0P7
- Mapcode Global: WH558.WVXZ
Location and coordinates are for the approximate centre of Llyn Cwmorthin within this administrative area.
Geographic features and populated places may cross administrative borders.