The Tarso Voon is a 3,100-metre (10,200 ft) high stratovolcano in the north of the Republic of Chad.

Extensive basaltic flows lie on the northeastern side in a 180-degree arc and are a result of the high activity in the Quaternary.

In the neighborhood in northwestern direction is the Ehi Mousgau, a stratovolcano with the same elevation, 3,100 metres (10,200 ft) above sea level.

[1] The well known Soborom Solfataric field is the largest in the Tibesti Mountains, it is located about 5 kilometres (3.1 mi) west of the summit rim.

The active fumaroles, mudpots and hot springs are visited by the people of the Tibesti for medical purposes.