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Volcano: The Eruption of Mount St. Helens

Important places

Mount St Helens National Volcanic Monument (18)
Washington (2,457)

Counties

Skamania (20)
District of Columbia (2,673)

Regions

Washington (1,134)
District of Columbia (2,676)

Countries

United States (64,950)

Other geographical areas

Cascade Range (70)
Piedmont (USA) (1,063)