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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
The southern and eastern sides of the volcano drain into an upstream impoundment, the Swift Reservoir, which is directly south of the volcano's peak. Although Mount St. Helens is in Skamania County, Washington, access routes to the mountain run through Cowlitz County to the west, and Lewis County to the north.
The Kulshan caldera is a Pleistocene volcano in the North Cascades of Washington and one of the few calderas identified in the entire Cascade Range. [ 1 ] [ 2 ] It is the product of the Mount Baker volcanic field , which has a history stretching back to possibly 3.722 million years ago.
Located about 25 miles (40 km) north of Adams is Goat Rocks Wilderness and the heavily eroded ruins of a stratovolcano that is much older than Adams. Unlike Adams, the Goat Rocks volcano was periodically explosive and deposited ash 2.5 million years ago that later solidified into 2,100-foot (640 m) thick tuff layers. [34]
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. *
Volcanoes that are not currently active, but may be either dormant or extinct or of otherwise uncertain inactive volcanic status. Wikimedia Commons has media related to Inactive volcanoes . Subcategories
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 .
Highest point; Elevation: 492 to 4,521 ft (150 to 1,378 m) [1] Coordinates: 1]: Geography; Location: Skamania County, Washington, United States: Parent range: Cascade Range [2]: Topo map: USGS Bare Mountain: Geology; Rock age: less than 700,000 years [1]: Mountain type: Volcanic field [3]: Volcanic arc: Cascade Volcanic Arc [2]: Last eruption: ~7,700 years BP [1]: Marble Mountain-Trout Creek ...