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Most of the volcanoes of the United States are located along the West Coast, at the subduction of the Pacific and North American tectonic plates. During the 20th century there were only two eruptions in the contiguous United States; Lassen in 1915, and Mount St. Helens in 1980, with Mount Hood in 1907 and Medicine Lake Volcano's Glass Mountain in 1910 being minor unvalidated third and fourth eruption candidates. Historic volcanic eruptions have occurred at volcanoes in Alaska, California, Hawaii, Oregon and Washington. Yellowstone Caldera, which straddles the border of Wyoming, Idaho and Montana is one of the largest non-extinct volcanic complexes on earth.

Many volcanoes are categorized both as volcanoes and mountains (if qualified).

Pages in category "Volcanoes of the United States"

The following 200 pages are in this category, out of approximately 212 total. This list may not reflect recent changes.

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