Left: An aerial view of the 600-foot lava dome in the crater of Washington's Mt. St. Helens, as seen between the May and July eruptions in 1980.

When most of us think about active volcanoes in the U.S., Mount St. Helens, Mt. Rainier and a few others will first come to mind. However, one of the most active volcanoes in the region is about a ...

Mount Saint Helens in Washington ... according to the US Geological Survey. The volcanic elevation, which is 8,363 feet in ...

Until Mount St. Helens blew in 1980 ... cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

An curved arrow pointing right. Mount St. Helens has recently been swarming with geological activity, which could mean the giant American volcano is gearing up for its next big eruption.

Drivers may be able to rep Smokey Bear, Mt. Saint Helens or historic Whidbey Island after this year's legislative session.

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 ...

Lahars are very destructive volcanic mudflows that can swallow everything in their paths. During the Mount St. Helens eruptions, lahars flowed up to 60 miles destroying 200 homes. Lahars are one ...

The Mount St. Helens Visitor Center on Spirit Lake Highway ... Officials say new exhibits will incorporate recent research ...

But it's hidden the day we're slated to go on Kenmore Air's Mount Rainier & Mount St. Helens Volcano Tour, meant to show off the iconic mountain. "Basically we'll take off out of Boeing Field ...

The volcanoes featured in the NOVA program "Volcano's Deadly Warning"—Galeras, Nevado del Ruiz, Popocatepetl, and Mt. Redoubt—as well as many other famous volcanoes, including Mt. St. Helens ...