Sunset Crater Volcano National Monument contains the Sunset Crate cinder cone north of Flagstaff, Arizona. It is the youngest in the San Francisco volcanic field that is believe to have erupted around AD 1085.
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Sunset Crater Volcano National Monument contains the Sunset Crate cinder cone north of Flagstaff, Arizona. It is the youngest in the San Francisco volcanic field that is believe to have erupted around AD 1085.