Tibesti Mountains
The ecoregion covers in the volcanic Tibesti Mountains of Chad and Libya, and 1932-m peak of Jebel Uweinat on the border of Egypt, Libya, and Sudan. The climate is arid and subtropical, but can reach 0°C at the highest altitudes during the winter. Rainfall is irregular but more regular than the surrounding desert and many of the lower wadis are watered by rain which falls higher up.