A 12,000-foot volcanic ash cloud from Mount St Helens led to urgent aviation warnings in Washington. Winds, not an eruption, ...

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Add Yahoo as a preferred source to see more of our stories on Google. Strong winds across parts of Washington state have kicked up volcanic ash deposited during the 1980 eruption of Mount St. Helens, ...

Add Yahoo as a preferred source to see more of our stories on Google. Today marks 46 years since Mount St. Helens erupted, claiming 57 lives. The U.S. Geological Survey (USGS) remembered those lost, ...

USGS says no eruption at Mount St. Helens after winds picked up old ash Thursday, sending it to 12,000 feet and drifting ...

Residents of the Pacific Northwest often cast a wary eye toward Mount St. Helens, but airborne ash this week isn’t a sign of a new eruption. That’s according to the U.S. Geological Survey, which ...

The May 18, 1980, eruption of Mount St. Helens remains the deadliest and most destructive volcanic event in U.S. history, claiming 57 lives and flattening 230 square miles of forest. The blast sent a ...

Beavers are a keystone species, and these busy little builders have time and again proven their ability to transform the landscape for the better.

When Mount St. Helens erupted on May 18, 1980, the landscape changed in an instant—the geologic version of an instant, anyway. It was the deadliest eruption the United States had ever seen, leveling ...