Lough Nacung Upper (), also known as Upper Lough Nacung, is a lake in Gweedore, a district in the north-west of County Donegal, Ireland.Discovery Series Sheet 1 (Fourth Edition). Ordnance Survey of Ireland (O.S.I.), Dublin, 2012.Patrick McKay, A Dictionary of Ulster Place-Names, p. 101. The Institute of Irish Studies, The Queen's University of Belfast, Belfast, 1999. 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 , meaning "lake of the isthmus" or "narrow neck of land (as between two lakes)".
Wildlife The main fish species are sea trout and salmon.
See also List of loughs in Ireland List of Special Areas of Conservation in the Republic of Ireland
References