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The Nile is a major north-flowing river in northeastern Africa. The longest river in Africa, it has historically been considered the longest river in the world, though this has been contested by research suggesting that the Amazon River is slightly longer, the Nile is amongst the smallest in the world by measure of cubic metres flowing annually. About 6,650 km (4,130 mi) long, its drainage basin covers eleven countries: Tanzania, Uganda, Rwanda, Burundi, the Democratic Republic of the Congo, Kenya, Ethiopia, Eritrea, South Sudan, Republic of the Sudan, and Egypt. In particular, the Nile is the primary water source of Egypt and Sudan.
An endorheic basin is a drainage basin that normally retains water and allows no outflow to other external bodies of water, such as rivers or oceans, but drainage converges instead into lakes or swamps, permanent or seasonal, that equilibrate through evaporation. They are also called closed or terminal basins or internal drainage systems or basins. Endorheic regions contrast with exorheic regions. Endorheic water bodies include some of the largest lakes in the world, such as the Caspian Sea, the world's largest inland body of water.
The Assiniboine River is a 1,070-kilometre (660 mi) river that runs through the prairies of Western Canada in Saskatchewan and Manitoba. It is a tributary of the Red River. The Assiniboine is a typical meandering river with a single main channel embanked within a flat, shallow valley in some places and a steep valley in others. Its main tributaries are the Qu'Appelle, Souris and Whitesand Rivers. For early history and exploration see Assiniboine River fur trade.
The Luvua River is a river in the Katanga Province of the Democratic Republic of the Congo (DRC). It flows from the northern end of Lake Mweru on the Zambia-Congo border in a northwesterly direction for 350 kilometres (220 mi) to its confluence with the Lualaba River opposite the town of Ankoro. The Lualaba becomes the Congo River below the Boyoma Falls.
The Bear River is the largest tributary of the Great Salt Lake, draining a mountainous area and farming valleys northeast of the lake and southeast of the Snake River Plain. It flows through southwestern Wyoming, southeastern Idaho, and northern Utah, in the United States. Approximately 350 miles (560 km) long it is the longest river in North America that does not ultimately reach the sea.
The River Wey is a chalk stream flowing through Dorset in south west England.
The Chenab River is a major river that flows in India and Pakistan, and is one of the 5 major rivers of the Punjab region. It is formed by the union of two headwaters, Chandra and Bhaga, which rise in the upper Himalayas in the Lahaul and Spiti district of Himachal Pradesh state, India. Chenab flows through the Jammu region of Jammu and Kashmir, India into the plains of Punjab, Pakistan, before flowing into the Indus River near the city of Uch Sharif.
The Luangwa River is one of the major tributaries of the Zambezi River, and one of the four biggest rivers of Zambia. The river generally floods in the rainy season and then falls considerably in the dry season. It is one of the biggest unaltered rivers in Southern Africa and the 52,000 square kilometres (20,000 sq mi) that make up the surrounding valley are home to abundant wildlife.
The Ruzizi is a river, 117 kilometres (73 mi) long, that flows from Lake Kivu to Lake Tanganyika in Central Africa, descending from about 1,500 metres (4,900 ft) to about 770 metres (2,530 ft) above sea level over its length. The steepest gradients occur over the first 40 kilometres (25 mi), where hydroelectric dams have been built. Further downstream, the Ruzizi Plain, the floor of the Western Rift Valley, has only gentle hills, and the river flows into Lake Tanganyika through a delta, with one or two small channels splitting off from the main channel.
Lake Eyasi is a seasonal shallow endorheic salt lake on the floor of the Great Rift Valley at the base of the Serengeti Plateau, just south of the Serengeti National Park and immediately southwest of the Ngorongoro Crater in the Crater Highlands of Tanzania. The lake is elongated, orientated southwest to northeast, and lies in the Eyasi-Wembere branch of the Great Rift Valley.
The Malagarasi River is a river in western Tanzania, flowing through Kigoma Region, although one of its tributaries comes from southeastern Burundi. It is the second-longest river in Tanzania behind the Rufiji—Great Ruaha, and has the largest watershed of any river flowing into Lake Tanganyika. The Malagarasi-Muyovozi Wetlands are a designated a Ramsar site. Local tribes have nicknamed the Malagarasi as "the river of bad spirits".
The Nyabarongo is a major river in Rwanda, part of the upper headwaters of the Nile. With a total length of 351 km (218 mi) the longest river entirely in Rwanda. It is extended 421 km (262 mi) in Lake Rweru including a 69 km (43 mi) upper course of Kagera River before joining into Ruvuvu River to form the Kagera River. The river begins its course at the confluence of the rivers Mbirurume and Mwogo in the South West of the country. These two rivers themselves begin in Nyungwe Forest, and are considered by some to be the most distant source of the Nile. From its start, Nyabarongo flows northward for 85 km, and forms the border between the Western and Southern Provinces. At the confluence with the river Mukungwa, the river changes course and flows eastward for 12 km, then to a more South Eastern course for the last 200 km. For the longest stretch of this course, the river serves as the boundary between the Northern and Southern Provinces, then between the City of Kigali and the Southern Province, and lastly between the City of Kigali and the Eastern Province.
The Lugenda or Lujenda is a river of northern Mozambique. It flows in a south-north direction from Lake Amaramba/Lake Chiuta and is the largest tributary of the Ruvuma River. It joins the Luambala River at 13°26′12″S36°18′20″E. The river valley is reported to be only 800 feet (240 m) above sea level. North of Lake Chiuta, those on the west bank call it the Msambiti River. At one point, the Lugenda splits into several streams with islands between them, some of whom are populated such as the island Achemponda.
The Rukwa Valley is a valley of southwestern Tanzania, and is a part of the Great Rift Valley. Sparsely populated because of its harsh environment, its grassland biodiversity includes thousands of species.
The Myakaliza is a river of southwestern Tanzania. It flows through the Rukwa Valley.
The Ambala is a river of southwestern Tanzania. It flows through the Rukwa Valley.
The Luhumuka is a river of southwestern Tanzania. It flows through the Rukwa Valley.
The Magamba is a river of southwestern Tanzania. It flows through the Rukwa Valley.
The Southern Ewaso Ng'iro is a river in the Great Rift Valley in Kenya. It plays an important role in the ecology of Lake Natron, the main regular breeding site for near-threatened lesser flamingos. Changes to land use in the river's headwaters or in the marshes before the river enters the lake could have a serious impact on this species.
The Congo-Nile Divide is the continental divide that separates the drainage basins of the Nile and Congo rivers. It is about 2,000 kilometres (1,200 mi) long.
References
- ↑ Hughes, R. H.; Hughes, J. S. (1992). A Directory of African wetlands. IUCN. p. 251. ISBN 978-2-88032-949-5 . Retrieved 31 March 2012.
- ↑ Royal Geographical Society (Great Britain) (1880). Proceedings of the Royal Geographical Society and monthly record of geography. Edward Stanford. p. 763. Retrieved 31 March 2012.
- ↑ Willard R. Espy (1950). Bold New Program. Harper. p. 120. Retrieved 31 March 2012.