It started as a go-for-broke experiment, but it wound up saving an ecosystem.

An experienced climber was found dead on Saturday inside the crater of Mount St. Helens, a volcano in Washington state that draws hikers, skiers and snowboarders year-round. Officials say he was ...

One of the most dangerous volcanoes in the U.S. appears to be rumbling to life—but luckily, an eruption does not appear to be imminent. Mount St Helens has seen an uptick in earthquakes since mid-July ...

New research offers clues as to why Mount St. Helens is one of the most explosive volcanoes in the Cascade range and why it stands apart from the chain of other Cascade volcanoes. Scientists from the ...

Add Yahoo as a preferred source to see more of our stories on Google. When Mount St. Helens erupted on May 18, 1980, it caused enormous devastation. The eruption triggered mudslides, an explosion, and ...

The most destructive volcanic eruption in United States history happened less than half a century ago in Washington state. On May 18, 1980, the north side of Mount St. Helens, in southwestern ...

Saturday marks the 44-year anniversary of Mount St. Helens' eruption in Washington. The blast on May 18, 1980, is the worst volcanic eruption in U.S. history, killing 57 people and spewing 520 million ...

SKAMANIA COUNTY, Wash. - On May 18, 1980, Mount St. Helens erupted, marking the United States’ most deadly and destructive volcanic eruption to date. Around 8:32 a.m., a magnitude 5.1 earthquake shook ...