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A look at the creation of the Mount St. Helens volcano in Washington state; its history of violent eruptions and the evidence another massive eruption could occur again in the near future.
Første luftdato : Feb 10, 2009
Sidste luftdato : Mar 02, 2010
Episode : 26 Episode
Sæson : 2 Sæson
Kørselstid: 45 minutter
Studio: History
Cast: Corey Johnson
Mandskab:
