Akakus mountains are like a vast “rocky” Museum situated in the mountainous region east of Ghat.
they are ploughed with a great number of wadies (dried beds of the prehistoric waterways). The valleys (whose rocks are formed by ancient sands), divide themselves into various plateaus of various heights covered with grey-black breccias.
Here one can find treasures of ancient rock carvings and rock paintings, called 'graffiti'. On the east and south-east side  the Tadrat; a steep slope formed of scattered rocks, headlands pathways and turrets which barely rise from the rubble and debris.
The valley of Wadi Tashwinat is said to consist of 101 wadis. It is perhaps the most stunning part of Akakus with its dramatic mountain formations and famous rock paintings.

The biggest wadi on the exit of the Tadrat is named Takhisset - the mass of sand dunes forces its path north between the Erg and the Akakus where it consequently takes on the names of Ouan Eillel, Ouan Kassa and Taita - it’s tracks are then lost in the sands before the Ubari Erg.