Bamako vs Río Otún

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Bamako (Bambara: ߓߡߊ߬ߞߐ߬ Bàmakɔ̌) is the capital and largest city of Mali, with a 2009 population of 1,810,366. In 2006, it had been estimated to be the fastest-growing town in Africa and sixth-fastest on the planet. It is located on the Niger River, near the rapids that divide the upper and middle Niger valleys in the southwestern part of the nation. Bamako is the country's administrative centre. The town proper is a cercle in its own right. Bamako's river port is situated in nearby Koulikoro, together with a significant regional trade and conference centre.

Bamako is the seventh-largest West African urban centre after Lagos, Abidjan, Kano, Ibadan, Dakar, and Accra. Locally manufactured goods include textiles, processed meat, and metal products as well as mining. Commercial fishing occurs on the Niger River. The title Bamako (ߓߡߊ߬ߞߐ߬‎ Bàmakɔ̌ in Bambara) comes in the Bambara word meaning"crocodile tail".

Source: Wikipedia

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The Otún River (Río Otún) is a river in the Risaralda department of Colombia. Its source is Lake Otún, fed by meltwater from Nevado Santa Isabel, and its outlet is the Cauca River. The Otún River passes between the cities of Pereira and Dosquebradas, and is crossed at that point by the César Gaviria Trujillo Viaduct, one of the largest cable-stayed bridges in South America. The Otún River is the only source of drinking water for Pereira and Dosquebradas.

The local water company takes about 1.8 cubic metres per second (64 cu ft/s) from the river at a site known as Nuevo Libaré. Agricultural development in that region has affected the quality of the water from the river, with pig and chicken farms as well as human waste water being major sources of bacteriological contamination.[1]The river passes through several protected zones including the Otún Quimbaya Flora and Fauna Sanctuary.

Source: Wikipedia