Credit... Amanda Lucier for The New York Times Examples of Washington’s volcanoes are highlighted below. Of the most active, seven have had some volcanic activity reported in the last 200 years. More than a dozen active or potentially . Active volcanoes dominate the skyline of the Pacific Northwest. All of the known historic eruptions in the contiguous United States have been from the Cascade Volcanoes. Two most recent were Lassen Peak in 1914 to 1921 and a major eruption of Mount St. Helens in 1980. It runs from Canada‘s British Columbia through the U.S. states of Washington and Oregon to Northern California.. (Dormant volcanoes are those which have not been active for a long time, but are still not fully extinct.) The Cascade Volcanoes (also known as the Cascade Volcanic Arc or the Cascade … Taking its name from the Cascade Range, the arc has 18 volcanoes in all, many of them still active and the rest considered potentially active. Rocky Mountains. The familiar snow-clad peaks of the Cascade Range are part of a 1,300 km (800 mi) chain of volcanoes, which extends from northern California to southern British Columbia. For the namesake mountain range see Cascade Range. There are 18 volcanoes in the Cascade range and most of them have been active in the past 2000 years. In fact all recent volcanic eruptions in the USA outside Hawaii and Alaska have been from Cascades volcanoes. There are 18 volcanoes in the Cascade range and most of them have been active in the past 2000 years. Volcanoes have been erupting in the Cascade Range for over 500,000 years. The state also contains numerous dormant or extinct volcanoes, including five major volcanoes. Many peaks in the Cascade Range exceed 3,000 meters (10,000 feet). Since the signing of the Declaration of Independence in 1776, at least seven Cascade volcanoes have erupted. About 700 miles long, the Cascade Volcanic Arc stretches from the southern tip of Canada’s British Columbia through Washington, Oregon, and the northern part of California. All five major volcanoes in Washington are part of the Cascade Range, which is approximately 1,200 mi long, stretching from the Canadian province of British Columbia to the state of California. Map of Cascade Volcanoes ... Newberry Volcano Crater Lake Medicine Lake Volcano Mount Shasta Lassen Peak Olympic Mountains Coast Range Klamath Falls Eugene Salem Portland Bellingham Vancouver, B.C. Mount Hood in Oregon is one of 161 active volcanoes in the United States, many of them in the Pacific Northwest’s Cascade Range. The range stretches 1,100 kilometers (700 miles) north-to-south, and is approximately 130 kilometers (80 miles) across east-to-west.. 5/14/2021 Cascade Volcanoes - Wikipedia 1/11 Cascades Volcanoes Mount Rainier from the northeast Geography Location California, Oregon, and Washington, United States, and British Columbia, Canada Cascade Volcanoes This article is for the volcanic arc. active volcanoes crown the Cascade Range. Spokane Longview Vancouver Redding Yakima Pendleton Bend Chehalis Olympia Tacoma Everett Seattle Scale 0 50 100 Miles 0 50 100 150 200 Kilometers. During the past 4,000 years eruptions have occurred at an average rate of about 2 per century. The Cascade Range or Cascades is a major mountain range of western North America.. Eruptions in the Cascade Range during the past 4,000 years. The North Cascades has many peaks that are of non-volcanic origin though it does have some significant volcanoes. 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