Showing Volcano: The Eruption of Mount St. Helens by Longview Publishing Company
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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)