What is the highest mountain in Libya ?

Bikku Bitti, also known as Bette Peak, is the highest mountain in Libya at 2,266 metres (7,434 ft). It is located on the Dohone spur of the Tibesti Mountains in southern Libya, near the Chadian border.

Bikku Bitti is in one of the least known and least accessible parts of the Sahara Desert. It was climbed in December 2005 by Ginge Fullen and his Chadian guides, who approached from the Chadian side. Although they were not the first to summit the mountain—Fullen reports that "there were a number of cairns on top we could clearly see"—it was the first documented climb.

The Tibesti Mountains are a mountain range in the central Sahara, primarily located in the extreme north of Chad, with a small portion located in southern Libya. The highest peak in the range, Emi Koussi, lies to the south at a height of 3,415 meters (11,204 ft) and is the highest point in both Chad and the Sahara. Bikku Bitti, the highest peak in Libya, is located in the north of the range. The central third of the Tibesti is of volcanic origin and consists of five volcanoes topped by large depressions: Emi Koussi, Tarso Toon, Tarso Voon, Tarso Yega and Toussidé. Major lava flows have formed vast plateaus that overlie Paleozoic sandstone. The volcanic activity was the result of a continental hotspot that arose during the Oligocene and continued in some places until the Holocene, creating fumaroles, hot springs, mud pools and deposits of natron and sulfur.