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Mt St Helens

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Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. Its major eruption on May 18, 1980, was the deadliest and most economically destructive volcanic event in US history, killing 57 people and destroying 200 homes, 47 bridges, and 15 miles of railways. The eruption reduced the mountain's summit from 9,677 to 8,363 feet and left a 1-mile-wide horseshoe-shaped crater.learn more on wikipedia