Koobi Fora, East of Lake Turkana, comprises approximately 700 square miles of fluvial and lacustine sediments representing a broadly continuous sequence of deposition from the Pliocene (5.0 million) to the Early Pleistocene (1.0 million) years old.In the language of the Gabbra, Koobi Fora means a place of the commiphora and the source of myrrh, which is a common plant in this hot and arid area.