aharhar canyon. illizi province, djanet, algeria, africa

canyon gorge sand sandstone rock deserted tadrart mountains wadi formation rocky algeria sahara africa illizi djanet aharhar tassili n'ajjer ajjer najjer oued aharhar national park tamaricaceae tamarisk tamarix tamarix usneoides tree trees nature erg mountain environment oases oasis flora scenery exterior evergreen overgrown imposing climate tourism travel terrain covered shrub