tassili n'ajjer national park. algeria, africa

rock desert deserted dune erosion arch window mountain mountains sand stone rocky sandstone formation wind inselberg fissure rift sahara wadi bouhadian tadrart algeria algerian africa djanet tamezguida tassili n#39aph39#ajjer national park nature natural erg geology geological weathered landform barren terrain heat tourism travel venture shadow wilderness view beautiful formations through erosional badlands canyon landscape valley architecture butte plateau soil temple cliff