The western side of glacier-covered Monte Tronador volcano overlies rugged granitic peaks of the Northern Patagonian Batholith in the foreground. Activity at the Tronador volcanic group, which straddles the Chile-Argentina border east of scenic Lake Todos los Santos, dates back to the early Pleistocene and ended during the mid-Pleistocene. The only possible Holocene activity in the volcano group took place SSE of Monte Tronador, forming the post-glacial Fonck cinder cone and lava flow.

Photo by Oscar González-Ferrán (University of Chile).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Tronador