It's common knowledge that Yellowstone Park sits on top of an ancient supervolcano, but what happened last time it erupted?

Nearly 45 years after Mount St. Helens' eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, ...

MOUNT ST. HELENS (KPTV) - A snowmobiler with an injured ... and transported him via a snowmobile sled to Marble Mountain Sno-Park, where North Country EMS was waiting to take him to the hospital.

Some hope for a Mount St. Helens National Park, with congressional funding, lodging, and more money for more science. Funds are starting to flow, with more than $6 million in federal stimulus last ...

Staff fired from the Gifford Pinchot National Forest returned to work Monday, following weeks of uncertainty after the federal government’s mass firings earlier this year.

The very same stratovolcano, Mount St Helens in Washington ... forest service employees from the surrounding Gifford Pinchot National Forest were fired by executive order, SFGATE reported.

This story appears in the August 2009 issue of National Geographic magazine ... was a thousand times the size of the Mount St. Helens eruption in 1980, which killed 57 people in Washington.

There are so many amazing things to do at Mount Rainier National Park in Washington ... yet this volcano remains active today ...

At Mount St. Helens, volcano monitoring and trail maintenance efforts are set to degrade without help from federal agencies.

A very common case study for volcanoes is the eruption of Mount St Helens in the USA in 1980. Other case studies include the eruption of Mount Etna in Sicily in 1974 and Heimaey eruption in ...

MOUNT ST. HELENS, Wash. (KATU ... transporting him via a snowmobile sled to Marble Mountain Sno-Park, where North Country EMS was waiting to take him to the hospital. According to the U.S ...