Great Rift Valley is a giant tear stretch from Jordan Middle east crossing Africa down to Mozambique with distance of 10,000km long. In East Africa great rift valley divided into two branches western branch named Albertine passing in Lake Albert in Uganda down to Virunga Mountain, Nyiragongo Mountain in Congo then extend south to reach Lake Tanganyika in Western Tanzania. The Eastern branch of great rift valley escarpment named Gregory cross Kenya extending down to Lake Natron and Lake Manyara forming steep escarpment running to central region and southern highland up to the port of Beira in Mozambique.
The great Rift valley caused by tectonic forces as the floor broken by volcanoes. The rift valley region endowed with fertile soil due to volcano activities as some of mountains still active as Ol doinyo lengai, Nyiragongo and Virunga. Most of lakes found in rift valley are salt lakes as Lake Manyara, Lake Natron, Lake Momela, Lake Eyasi, Lake Makat in Tanzania and Lake Turkana, Lake Baringo, Lake Bogoria, Lake Nakuru, Lake Elmenteita and Lake Naivasha in Kenya.