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A visitor center run by the Washington State Parks is in Silver Lake, Washington, about 30 miles (48 km) west of Mount St. Helens. [100] Exhibits include a large model of the volcano, a seismograph, a theater program, and an outdoor natural trail. [100]
Twelve volcanoes in the arc are over 10,000 feet (3,000 m) in elevation, and the two highest, Mount Rainier and Mount Shasta, exceed 14,000 feet (4,300 m). By volume, the two largest Cascade volcanoes are the broad shields of Medicine Lake Volcano and Newberry Volcano, which are about 145 and 108 cubic miles (600 and 450 km 3) respectively.
Pages in category "Volcanoes of Washington (state)" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. *
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This is a list of Cascade volcanoes, i.e. volcanoes formed as a result of subduction along the Cascadia subduction zone in the Pacific Northwest of North America. The volcanoes are listed from north to south, by province or state: British Columbia , Washington , Oregon , and California .
The Cascade volcanoes define the Pacific Northwest section of the Ring of Fire, an array of volcanoes that rim the Pacific Ocean. The Ring of Fire is also known for its frequent earthquakes. The volcanoes and earthquakes arise from a common source: subduction, where the dense Juan de Fuca Plate plunges beneath the North American Plate. [32]
A view of Mount St. Helens, a volcano in Washington state on December 19, 2006. Cowlitz County EMS checked the Cascades Volcano Observatory to see if there was a connection between Mt. St. Helens ...
Standing at 12,281 feet (3,743 m), Adams towers about 9,800 feet (3,000 m) over the surrounding countryside. It is the second-highest mountain in Washington and third-highest in the Cascade Range. Because of the way it developed, it is the largest stratovolcano in Washington and second-largest in the Cascades, behind only Mount Shasta. Its ...