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Listening Session on National Park Centennial Initiative, April 2 in Flagstaff March 30, 2007
Did You Know? When Paricutin erupted in Michoacan, Mexico in 1943, scientists flocked to the site. Observations and studies there have helped to explain the eruption of Sunset Crater Volcano in Arizona 900 years earlier.
Last Updated: April 04, 2007 at 14:27 EST