The Clisbako Caldera Complex (also called the Cheslatta Caldera Complex) is a large dissected caldera complex in the Chilcotin Group and Anahim Volcanic Belt in central British Columbia, Canada. It has a diameter of 60 km (37 mi) and is composed mainly of Eocene felsic and mafic volcanic rocks. Rocks within the caldera range in composition from basalt to rhyolite.
References
Clisbako Caldera Complex Wikipedia(Text) CC BY-SA