Tassili n'Ajjer

Tassili n'Ajjer (Berber: Tassili n Ajjer, Arabic: طاسيلي ناجر, romanized: ṭāssīlī naʾjir; "Plateau of rivers") is a mountain range in the Sahara desert, located in south-eastern Algeria. It holds one of the most important groupings of prehistoric cave art in the world and covers an area of more than 72,000 km2 (28,000 sq mi). The site has been designated a national park and a Biosphere Reserve, and was inducted into the UNESCO World Heritage Site list in 1982. The literal English translation of Tassili n'Ajjer is 'plateau of rivers'.

Tassili n'Ajjer is a plateau in south-eastern Algeria at the borders of Libya and Niger, covering an area of 72,000 km2. It ranges from 26°20′N 5°00′E east-south-east to 24°00′N 10°00′E. Its highest point is the Adrar Afao that peaks at 2,158 m (7,080 ft), located at 25°10′N 8°11′E. The nearest towns are Djanet on the southeastern edge and Illizi on the northern edge. The plateau is of great geological and aesthetic interest. Its panorama of geological formations consisting of rock forests, composed of eroded sandstone, resembles a lunar landscape and hosts a range of rock art styles.