Black Tusk is very black in the crater in its cone are you sure it is extinct?
Br Nadeau
Dear Br,
Black Tusk, an andesite stratovolcano in the Garibaldi Lake volcanic field
of Canada, was active from 1.3 million to 170,000 years ago. It is heavily
dissected by glaciers. The most recent activity at this volcanic field was
110,000 years ago. Black Tusk will not erupt again. However, it is
possible for a new eruption to build a new volcano in the volcanic field,
perhaps adjacent to
or on top of Black Tusk.
Steve Mattox, University of North Dakota
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