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The Rift Valley is at its most magnificent in East Africa where the process of 'rifting' has led to the creation of the many spectacular lakes that are located in the region. The process itself however is ongoing with many active volcanoes in the area along with numerous hot and boiling springs indicating underground activity. The picture left shows the main African lakes of the Rift Valley with the red lines indicating the extent of the Rift valley itself. It is believed that the ongoing underground volcanic activity around the rift will eventually cause the continent of Africa to split with low lying areas, currently under sea level, being filled from the Red Sea, creating a new ocean with the remains of Somalia, Tanzania and Mozambique forming a new off Africa continent. The lakes are broadly grouped into the Ethiopian Rift Valley Lakes which are mostly alkaline, the Eastern Rift Valley Lakes of which three are freshwater and five alkaline, the Western or Albertine Rift Valley Lakes which are freshwater and the Southern Rift Valley lakes which are all fresh water save for Lake Rukwa. Above right is a video explaining how the Rift Valley itself was formed whilst below on this page we explore a number of the Great African lakes in a series of video documentaries. Some of these show how at least two of the lakes are drying up, one because of the construction of a hydro-electric dam on its main tributary river and the implications of that process for those whose lives depend on the lakes. On this page we also explore the River Nile, the world's longest river and the River Niger as it flows through west Africa before it discharges through the Niger Delta at the Gulf of Guinea. |