Mount St. Helens, the most active volcano in the Cascade Range, caught the public's attention when massive eruptions began in 1980. With new eruptions and earthquakes taking place recently, people are being reminded of the grave dangers associated with this volcano. The first website, provided by the USDA Forest Service, presents the research, recreational, and educational activities at the...

"After 18 years of relative quiescence, Mount St. Helens volcano recaptured the world's attention when it showed signs of reawakening in September 2004." This USGS website offers online factsheets on Mount St. Helens activity from September 2004 through March 2005. Visitors can discover the height of the new lava dome, new technology for monitoring eruptions, and the possible hazards related to...