Lough Nacung Upper
Lough Nacung Upper is a lake in County Donegal, Ireland. It connects Lough Dunlewey to Lough Nacung Lower, which drains into the Clady River.
Lough Nacung is a Special Area of Conservation.
The name is derived from the Irish cuing, meaning "narrow neck of land."Wildlife
The main fish species are sea trout and salmon.