The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only ...

Mount Lassen, in the southern Cascades, erupted on May 22, 1915, 65 years almost to the day before Mount St. Helens. Also known as Lassen Peak, the mountain is the southernmost active volcano in ...

There are currently no active volcanoes in New England, but they did once exist in the region and they created some of the landforms you can see today. The Ossipee Mountains are an example of a “ring ...

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From ocean, desert and ancient forest, to Paint Hills and snow-capped volcanoes, these are the Most Treasured Views in Oregon ...

A stratovolcano in Europe erupted on June 2 and sent tourists running for safety. What is the status of Washington's most ...

Crater Lake is among the numerous smaller volcanoes and volcanic features outside of the 13 major volcanoes that form the ...

The collapse of the world’s second-largest ice sheet would drown cities worldwide. Is that ice more vulnerable than we know?

According to the U.S. Geological Survey, Mount St. Helens was formed during four eruptive stages beginning about 275,000 years ago and has been the most active volcano in the Cascade Range.