The ridge of mauntains is The Great Rift Valley a vast geographical and geological feature that runs north to south for some 5,000 km, from northern Syria in Southwest Asia to central Mozambique and Kenya in East Africa. The valley varies in width from 30-100 km and in depth from a few hundred to several thousand metres. It has been created through the rifting and separation of the African and Arabian tectonic plates that began around 35 million years ago in the north, and by the ongoing separation of East Africa from the rest of Africa along the East African Rift, which began about 15 million years ago.

Masai abandoned village and cows being hearded.