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Definition of Mount st. helens
1. Noun. An active volcano in the Cascade Range in southwestern Washington; erupted violently in 1980 after 123 years of inactivity.
Exact synonyms: Mount Saint Helens, Mt. St. Helens
Group relationships: Evergreen State, Wa, Washington, Cascade Mountains, Cascade Range, Cascades
Generic synonyms: Volcano
Group relationships: Evergreen State, Wa, Washington, Cascade Mountains, Cascade Range, Cascades
Generic synonyms: Volcano
Lexicographical Neighbors of Mount St. Helens
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