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The Cascade Volcanoes (also known as the Cascade Volcanic Arc or the Cascade Arc) are a number of volcanoes in a volcanic arc in western North America, extending from southwestern British Columbia through Washington and Oregon to Northern California, a distance of well over 700 miles (1,100 km).
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 .
Together, these sequences of fluid volcanic rock form the 200,000-square-mile (520,000 km 2) Columbia Plateau in eastern Washington, Oregon, and parts of western Idaho. [ 13 ] The Columbia River Gorge is the only major break of the range in the United States.
With a summit elevation of 11,249 ft (3,429 m), [1] it is the highest mountain in the U.S. state of Oregon and is the fourth highest in the Cascade Range. [6] Ski areas on the mountain include Timberline Lodge ski area which offers the only year-round lift-served skiing in North America, Mount Hood Meadows , Mount Hood Skibowl , Summit Ski Area ...
Stratovolcanoes of Washington (12 P) Pages in category "Volcanoes of Washington (state)" The following 40 pages are in this category, out of 40 total.
Name Elevation Location Last eruption meters feet Coordinates; Malumalu: Last 8,000 years Ta‘u-931: 3054: 30,000 years ago [15]: Ofu-Olosega: 639: 2096: 1866 unnamed submarine cone eruption
Mount St. Helens (known as Lawetlat'la to the local Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, [1] in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast of Portland, Oregon, [2] and 98 miles (158 km) south of Seattle. [3]
The observatory's current territory covers Oregon, Washington, and Idaho. The Cascade Range's extent includes northern California , and Cascade volcanoes in that state, such as Mount Shasta and Lassen Peak , previously fell under the CVO's jurisdiction.