desert landscape with acacia in moul naga valley at in tassili najjer national park in algeria

acacia acacus adventure africa ajjer akakus algeria algerie arid barkhan berdj colorful desert djanet dry dune erg haloxylon heritage hill illizi landscape moul moulnaga mountain naga najjer national nature noires outdoor panorama park plant rock sahara sand scenery scenic shadow shittahz sky stone sunny tadrart tassili thorn tree unesco vachellia