This video channel features a geologist taking around California visiting his fa…


This video channel features a geologist taking around California visiting his favorite sites. Here he’s at the Crowley Lake Columns – vertical pipes formed by steam as it escaped from the degassing and cooling Bishop Tuff, remnant of a gigantic volcanic eruption in California 760,000 years ago.

Mammoth Mountain is renowned for its skiing. Did you know its also an active volcano? The area sits on top of the Long Valley Caldera, a supervolcano that er…

Source