
Located midway between Lake Chad and the Gulf of Syrte, Yega is situated in
the middle of the volcanic region of Tibesti in Southern Libya and
Northern Chad.

This region makes a triangle that measures nearly 350
miles in length and is surrounded by the sandstone plains and plateaus of
the central Sahara. Yega's caldera has a diameter of around 18 km.

This volcanic complex has the volcanoes Toon,
Oyoye, Tieroko and Voon
located off to the north, northeast and northwest of it.
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Vincent, Pierre M. 1963, Les volcans Tertiaires et Quaternaires du Tibesti Occidental et Central (Sahara du Tchad)#23, Bureau de Recherches Geologiques et Minieres, Paris, p88.
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