Mt St. Helen is an volcano which was formed a 40,000 years ago its located in south of Seattle Washington in the pacific north, the volcano erupted on may 18 1980s and 57 people died from the ash , The closest town to MT St. Helen is cougar. Washington and its 11 miles away for the mountain. The rest of the area is ringed by the Pinchot National Forest. Castle Rock, Longview and Kelso, The adjacent main highway in and out of the area is State Route 504 action on the mountain continued until 1986 . Those incident of erupting ash continued from 1989 to 1991, Removal of the crypto dome and flank cleared the conduit of Mount St. Helens, resulting in a release of pressure on the top of the volcano's plumbing system. This cause Over the
