Author 'Mic.marif' (Id 187906 ) : The chott El-Dderid large depression of approximately 5000 km2 that extends from Hezoua to the west and Kebili in the east, the surface is completely flat and covered with salt. It is crossed by a single road that connects Tozeur has Kebili, lunar-like landscape, there is nothing not animals or mosquitoes, nor pollen, nor dust, silence and peace in dying.