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The Orange River is a river in Southern Africa. It is the longest river in South Africa. With a total length of 2,432 km (1,511 mi), the Orange River Basin extends from Lesotho into South Africa and Namibia to the north. It rises in the Drakensberg mountains in Lesotho, flowing westwards through South Africa to the Atlantic Ocean. The river forms part of the international borders between South Africa and Lesotho and between South Africa and Namibia, as well as several provincial borders within South Africa. Except for Upington, it does not pass through any major cities. The Orange River plays an important role in the South African economy by providing water for irrigation and hydroelectric power. The river was named the Orange River in honour of the Dutch ruling family, the House of Orange, by the Dutch explorer Robert Jacob Gordon. Other names include simply the word for river, in Khoekhoegowab orthography written as !Garib, which is rendered in Afrikaans as Gariep River with the intrusion of a velar fricative in place of the alveolar click, Groote River or Senqu River, derived from ǂNū "Black". It is known in isiZulu as isAngqu.
The Great Kei River is a river in the Eastern Cape province of South Africa. It is formed by the confluence of the Black Kei River and White Kei River, northeast of Cathcart. It flows for 320 km (199 mi) and ends in the Great Kei Estuary at the Indian Ocean with the small town Kei Mouth on the west bank. Historically the Great Kei River formed the southwestern border of the Transkei region as was formerly known as the Nciba River.
The Gariep Dam is located in South Africa, near the town of Norvalspont, bordering the Free State and Eastern Cape provinces. Its primary purpose is for irrigation, domestic and industrial use as well as for power generation.
The Vanderkloof Dam is situated approximately 130 km (81 mi) downstream from Gariep Dam and is fed by the Orange River, South Africa's largest river. Vanderkloof Dam is the second-largest dam in South Africa, having the highest dam wall in the country at 108 metres (354 ft). The dam was commissioned in 1977; it has a capacity of 3,187.557 million cubic metres (2,584,195 acre⋅ft) and a surface area of 133.43 square kilometres (51.52 sq mi) when full. Other rivers flowing into this dam are the Berg River, two unnamed streams coming in from the direction of Reebokrand, the Knapsak River, Paaiskloofspruit, Seekoei River, Kattegatspruit and the Hondeblaf River, in a clockwise direction.
The Tsomo River copper or Tsomo River opal is a species of butterfly in the family Lycaenidae. It is endemic to South Africa, where it is found from the northern Eastern Cape to southern KwaZulu-Natal.
The Berg River Dam is a 68-metre (223 ft) high dam on the Berg River in South Africa. It is the centerpiece of the Berg Water Project (BWP) which is designed to capture the winter rainfall and store it for supply to Cape Town during the dry summer months. The project in turn forms an important part of the Western Cape Water Supply System (WCWSS), an intricate system of dams and bulk water infrastructure that provides water to more than 3 million people. At the inauguration of the dam in 2009, then President of South Africa Kgalema Motlanthe called the project "a good example of how public infrastructure projects can be used to contribute meaningfully to poverty eradication and to foster social empowerment of the people." The Berg River Dam was the first dam in South Africa to be designed and constructed, and is due to be operated, in accordance with the guidelines of the World Commission on Dams. It has been completed on time and within budget. The Berg River basin and the adjacent metropolitan area of Cape Town are of particular importance to the Western Cape region because, although the basin generates only about 3% of the country's water resources, it is home to about 8% of South Africa's population, and produces about 12% of GDP.
Mzimvubu to Keiskamma WMA, or Mzimvubu to Keiskamma Water Management Area , includes the following major rivers: the Swane River, Mntafufu River, Mzimvubu River, Mngazi River, Mthatha River, Xora River, Mbashe River, Nqabara River, Gqunube River, Buffalo River, Nahoon River, Groot Kei River and Keiskamma River, and covers the following Dams:
Woodhead Dam is a dam on Table Mountain, Western Cape, South Africa. It was built in 1897 and supplies water to Cape Town. The dam, which was the first large masonry dam in South Africa, was designated as an International Historic Civil Engineering Landmark by the American Society of Civil Engineers in 2008.
The Braamfontein Spruit is the longest stream in Johannesburg, South Africa.
The Crocodile River is a river in South Africa. At its confluence with the Marico River, the Limpopo River is formed.
The Wilge River (iKuthu) is a river in Mpumalanga and Gauteng provinces, South Africa. It is a tributary of the Olifants River.
The Vaal River Barrage Reservoir is a dam on the Vaal River near Vanderbijlpark, border Gauteng and Free State, South Africa.
Harpendyreus tsomo, the Tsomo blue, is a butterfly of the family Lycaenidae. It is mainly found in Lesotho, but also in South Africa where it is known from high altitudes in the Orange Free State and the East Cape.
Tsomo is a town in Chris Hani District Municipality in the Eastern Cape province of South Africa.
Cala is a town in Sakhisizwe Local Municipality, part of the Chris Hani District Municipality in the Eastern Cape province of South Africa.
The Tsomo River is a river in the Eastern Cape Province of South Africa. It is a tributary of the Great Kei River.
Nhlangwini/Ntlangwini (Hlangwane) is a Bantu language of South Africa. It is located along the border between Xhosa and Zulu, but is more closely related to Swazi.
The Colley Wobbles Power Station is a hydroelectric power facility located approximately 30 km east of Dutywa in the Amathole District Municipality of the Eastern Cape of South Africa. Water is drawn from behind a dam on the Mbhashe River and diverted through a penstock to the Colley Wobbles Power Station. The power station discharges into the Mbhashe River.
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