Mount St. Helen Mount St. Helen is a volcano located along the cascade range, which is a volcano chain stretching from Northern California to British Columbia. Mount St Helen now stands at a height of 8,364 feet above sea level. Mount St. Helen was one the smaller eruptions of five major ones in Washington State. It's elevation before the eruption was 9,677 feet high. On March 29, 1980 after a period of one-hundred and twenty-three years of inactivity a …
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…streets, and building new houses were the citizens in the area. Without them the mess would have taken much longer to pick up. Now the United States Geological survey has established both a continous twenty-four hour and periodic monitoring programs to study and predict future eruptions. They also set up a seismic station near the dome of the mountain. The University of Washington State in conjunction with the United States Geological survey now monitor it.