Lake, Fermanagh district, Northern Ireland. An average of 5 mi (8 km) wide, the lake consists of the shallow Upper Lough Erne, 12 mi (19 km) long, and Lower Lough Erne, 18 mi (29 km) long, linked by a 10-mi (16-km) strait that is part of the River Erne. Numerous islands dot the lakes and provide recreation facilities. The River Erne, which flows north across the border of Northern Ireland and empties into Donegal Bay, is 72 mi (116 km) long
a lake in Northern Ireland west of Belfast, the largest lake in the UK. Lake, east-central Northern Ireland. It is the largest lake in the British Isles, with an area of 153 sq mi (396 sq km). It is about 15 mi (24 km) wide and 18 mi (29 km) long, though it is only about 40 ft (12 m) deep. Ancient deposits in Toome Bay, on its northwestern shore, have yielded the oldest recorded human artifacts in Ireland. In 1959 flood-control works significantly lowered the lake level