Skip to main content
U.S. flag

An official website of the United States government

Debris avalanche deposit view from NW of Mount St. Helens after the...

Detailed Description

After the May 18, 1980 eruption, Mount St. Helens' elevation was only 8,364 feet (2,550 meters) and the volcano had a one-mile-wide (1.5 kilometers) and approximately 600 m (2000 ft) deep horseshoe-shaped crater. View here is from the northwest.


Public Domain.