abstract rock formation aka pig or hedgehog at tamezguida, tassili najjer national park, algeria

algeria algerie africa desert sahara djanet illizi tassili unesco heritage najjer ajjer tadrart acacus akakus erg national park sand boar dune rock nature landscape heat dry stone sunny scenery geology arid sky orange outdoor shadow sculpture panorama hill barkhan noires mountain pig hedgehog scenic formation abstract natural valley tamezguida sandstone