Emi Koussi
High pyroclastic shield volcano in the Sahara
Also called Emi Koussou, a tall pyroclastic shield volcano at the Tibesti Mountains' southeastern tip, in the central Sahara, in northern Chad's Borkou Region. One of several volcanoes of the Tibesti, it is the Sahara's highest mountain, reaching 3,447 metres (11,309 ft) and rising 3 km (1.9 mi) above the sandstone plains around it.
Photo: Unknown, Public domain