Showing results by author "Larry LaVoie"

Six-hundred-thousand years ago, the largest volcano in the Western Hemisphere erupted covering much of what is now the Central United States in a thick layer of ash. The cataclysm left behind a massive caldera that today is known as Yellowstone National Park.

After volcanologist Milton Bainbridge is found dead under mysterious circumstances, USGS volcanologist Jason Trask is called in from overseas to replace his former boss and work at Yellowstone Park with Bainbridge’s assistant Carlene Carlson.