8,365 ft / 2,550 m

#103 in Washington

#9,474 in United States


4,606 ft / 1,404 m

#11 in Washington

#113 in United States


166 summits

#3 in Washington

#87 in United States

Top climbing months

July   23%

September  17%

May   14%

Most climbed route

Monitor Ridge


  • Mount Saint Helens is an active stratovolcano most famous for its catastrophic eruption on May 18, 1980 which was the deadliest and most economically destructive volcanic event in the history of the U.S. 57 people were killed; 250 homes, 47 bridges, 15 miles of railways, and 185 miles of highway were destroyed.
  • A massive debris avalanche caused by the 1980 eruption reduced the elevation of the mountain's summit from 9,677 ft to 8,365 ft and replaced it with a 1 mile wide horseshoe-shaped crater.
  • The Mount St. Helens National Volcanic Monument was created to preserve the volcano and study its aftermath.