Tirnhert

The Tinrhert plateau is a hamada, a broad expanse of bare rock in the eastern Sahara. Its stony surface lies between the dunes of the Great Eastern Erg and the country around Illizi, north of the sandstone heights of Tassili n'Ajjer. Wind and water have shaped the surrounding desert into ridges, ravines and sand seas. Farther south, paintings and engravings on the Tassili's rocks record the people and animals of a much wetter Sahara.