Lough Neagh
| Lough Neagh Loch nEathach (Irish) Loch Neagh (Ulster-Scots) |
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NASA Landsat image
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| Location | Northern Ireland, UK |
| Coordinates | 54°37′06″N 6°23′43″W / 54.61833°N 6.39528°WCoordinates: 54°37′06″N 6°23′43″W / 54.61833°N 6.39528°W |
| Primary inflows | Upper Bann, Six Mile Water, Glenavy River, Crumlin River, Blackwater, Moyola River, Ballinderry River, River Main |
| Primary outflows | Lower Bann |
| Catchment area | 1,760 sq mi (4,550 km2) |
| Basin countries |
Northern Ireland (91%) Republic of Ireland (9%) |
| Max. length | 19 mi (30 km) |
| Max. width | 9.3 mi (15 km) |
| Surface area | 151 sq mi (392 km2) |
| Average depth | 30 ft (9 m) |
| Max. depth | 82 ft (25 m) |
| Water volume | 7.76×1011 imp gal (3.528 km3) |
| Islands | (see below) |
| Designated | 5 January 1976 |
Lough Neagh (pronounced /ˌlɒx ˈneɪ/, lokh nay) is a large freshwater lake in Northern Ireland. It is the largest lake by area in the British Isles, with a surface area of 151 square miles (392 square kilometres). It supplies 40% of Northern Ireland's water. Its main inflows are the Upper River Bann and River Blackwater, and its main outflow is the Lower River Bann. Its name comes from Irish: Loch nEachach, meaning "Eachaidh's lake" (Irish: [ɫ̪ɔx ˈn̠ʲahax]). The lough is owned by the Earl of Shaftesbury.
With an area of 151 square miles (392 km2), it is the largest lake on the island of Ireland, the 15th largest freshwater lake within the European Union and is ranked 31st in the List of largest lakes of Europe. Located 20 miles (32 km) west of Belfast, it is about 20 miles (32 km) long and 9 miles (14 km) wide. It is very shallow around the margins and the average depth in the main body of the lake is about 30 feet (9 m), although at its deepest the lough is about 80 feet (24 m) deep.
Of the 1,760-square-mile (4,550 km2) catchment area, around 9% lies in the Republic of Ireland and 91% in Northern Ireland; altogether 43% of the land area of Northern Ireland is drained into the lough, which itself flows out northwards to the sea via the River Bann. As one of its sources is the Upper Bann, the Lough can itself be considered as part of the Bann. Lough Neagh is fed by many tributaries including the rivers Main (34 mi, 55 km), Six Mile Water (21 mi, 34 km), Upper Bann (40 mi, 64 km), Blackwater (57 mi, 92 km), Ballinderry (29 mi, 47 km) and Moyola (31 mi, 50 km)
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