The volcano consists of a lava plateau that originated in a number of vents, which form a number of volcanic cones. It covers a surface of about in the northeastern Tibesti mountains, with a steep drop towards the east and the north and gentler slopes in the south and west. Summits in the volcano include Boubou, Chebedo, Godoon, Kazena Lulli, Kégueur Tédi, Mouskorbé, Tarso Adar, Tarso Aozi, Tarso Chididemi, Tarso Goziydi, Tarso Kozen and Tarso Toudougou. Of these Mouskorbé reaches a height of .