towards the West, named Karkur Hamid, Karkur Idriss and Karkur Ibrahim. Its eastern part consists of sandstone, ending in Karkur Talh. In Karkur Murr, there is a permanent oasis (Guelta), called Ain El Brins (Bir Murr).

In the sandstone part, four plateaus emerge from the level of the surrounding desert: the Hassanein plateau, connected to an unnamed plateau through a narrow neck, the Italia plateau and another unnamed plateau. The highest point of Uweinat is on top of