26 years later, what have we learned from Mount St. Helens?

25 years later, what have we learned from Mount St. Helens?...

Detailed Description

The plume from Mount St. Helens rose nearly 3,000 feet (1,000 meters) above the volcano's rim. May 19, 1982. USGS Photograph by Lyn Topinka.

Details

Image Dimensions: 450 x 305

Date Taken: