The principal settlements in the Tibesti are Bardaï, Aozou and Zouar, respectively located in the center, north and west of the range, and each situated on oases along the enneris. Bardaï, at an elevation of , is the capital of Chad's Tibesti Region with around 1,500 inhabitants. It is connected to Zouar by a track that crosses Tarso Toussidé. The village of Omchi is accessible from Bardaï via Aderké, or from Auzou via Irbi. These rough tracks extend southward towards Yebbi Souma and Yebbi Bou, and then follow the course of Enneri Misky. The eastern half of the Tibesti is cut off from the western half, as the eastern village of Aozi is accessible from Libya via Ouri. Zouar has an airport, as does Bardaï at Zougra. Bardaï also has a hospital, although the medical supply is very much dependent upon the prevailing political situation. In the early 1980s, the population of the Tibesti Mountains was estimated to number 8,000 which was dispersed among the interior valleys, outer slopes and plateaus. Around a quarter of the population was located around Zouar, 18% in the center and in the northeastern valley of the Enneri Bardagué where many palm trees are cultivated, 16% in the north around Aozou and the valley of the Enneri Yebige, and 7% on the plains. The remaining third of the population was dispersed among the tarsos.