One hundred years ago on May 6, 1907, President Theodore Roosevelt proclaimed Cinder Cone and Lassen Peak national monuments.
FLAGSTAFF — Just 30 minutes from downtown Flagstaff, Sunset Crater Volcano National Monument offers a striking look at northern Arizona’s explosive past. The cinder cone, now standing over 8,000 feet ...
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Cinder cones: the mini volcanoes that pack a punch
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