Government Information

Earl Gregg Swem Library

Mount St. Helens, 1980 to Now: What’s Going On?

Categories: Geology/Mining

http://pubs.usgs.gov/fs/2013/3014/fs2013-3014_text.pdf

Describes what has been happening since the 1980 eruption and what changes have occurred to the volcano.  From the U.S. Geological Survey