Afar Triangle

Topographic map showing the Afar Triangle The Afar Triangle (also called the Afar Depression) is a geological depression caused by the Afar triple junction, which is part of the Great Rift Valley in East Africa. The region has disclosed fossil specimens of the earliest hominins; that is, the earliest of the human clade. As a result, the Depression is thought by some paleontologists to be the cradle of human evolution. The Depression borders Eritrea, Djibouti, and the entire Afar Region of Ethiopia. It contains the lowest point in Africa, Lake Assal, Djibouti, at 155 m (509 ft) below sea level.

The Awash River is the main waterflow into the region, but it runs dry during the annual dry season, and ends as a chain of saline lakes. The northern part of the Afar Depression is also known as the Danakil Depression. The lowlands are affected by heat, drought, and minimal air circulation, and contain the hottest places (year-round average temperatures) of anywhere on Earth.