Fezzan

Fezzan ( , ; ; |Fazzān}} ; ) is the southwestern region of modern Libya. It is largely desert, but broken by mountains, uplands, and dry river valleys (wadis) in the north, where oases enable ancient towns and villages to survive deep in the otherwise inhospitable Sahara Desert. The term originally applied to the land beyond the coastal strip of Africa proconsularis, including the Nafusa and extending west of modern Libya over Ouargla and Illizi. As these Berber areas came to be associated with the regions of Tripoli, Cirta or Algiers, the name was increasingly applied to the arid areas south of Tripolitania.

After the 1934 formation of Libya, the Fezzan province was designated as one of the three primary provinces of the country, alongside Tripolitania province to the north and Cyrenaica province to the northeast. Provided by Wikipedia