Mount St.Helens eruption

See how Mount St. Helen caused Spirit lake to disappear

Before Mount St. Helen erupted 35 years ago on May 18th, Spirit Lake was a popular tourist destination in Washington state,a place dotted with campsites where visitors came to it's crystal clear waters that reached depths of 200 feet. When Helen erupted all that was left of Spirit Lake was layers of volcanic ash,tree limbs and mud.