Jebel Azao or Adrar Afao is the highest peak in the

Tassili n'Ajjer Tassili n'Ajjer ( Berber: ''Tassili n Ajjer'', ar, طاسيلي ناجر; "Plateau of rivers") is a national park in the Sahara desert, located on a vast plateau in southeastern Algeria. Having one of the most important groupings of prehistoric ...

range in southeastern Algeria, at . The range forms the northwest border of the

Chad Basin The Chad Basin is the largest endorheic basin in Africa, centered on Lake Chad. It has no outlet to the sea and contains large areas of semi-arid desert and savanna. The drainage basin is roughly coterminous with the sedimentary basin of the sam ...

Geography

The Jebel Azao is a peak in the Adrar massif of the Tassili N'Ajjer, a sandstone plateau to the northeast of the

Hoggar Mountains The Hoggar Mountains ( ar, جبال هقار, Berber: ''idurar n Ahaggar'') are a highland region in the central Sahara in southern Algeria, along the Tropic of Cancer. The mountains cover an area of approximately 550,000 km. Geography This ...

The mountain forms a ridge on the plateau, roughly parallel to the escarpment. The massif is mainly made of sandstone, which has resulted in the formation of many natural rock arches. Mt. Afao is drained by various

wadi Wadi ( ar, وَادِي, wādī), alternatively ''wād'' ( ar, وَاد), North African Arabic Oued, is the Arabic term traditionally referring to a valley. In some instances, it may refer to a wet (ephemeral) riverbed that contains water onl ...

s, which converge on the Wadi Imirhou. This wadi runs northeast, then turns to the northwest and disappears in the

Issaouane Erg The Issaouane Erg (also called Issaouane-N-Irrararene) is an approximately 38,000 km2 erg (sand sea) in Algeria's portion of the Sahara desert, located at . Topography The Issaouane Erg is located near the Ahaggar Mountains. It is part of a m ...

sands to the west of

Illizi Illizi ( ar, إيليزي) is a town and commune, coextensive with Illizi District, situated in the south-eastern part of Algeria, and capital of Illizi Province. According to the 2008 census it is the largest commune by population in the province ...

References

Citations Sources * * * {{Mountains of Algeria , state=collapsed Mountains of Algeria