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 ...

The magma system beneath volcanoes may persist even after recent eruptions, a new study finds. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Our western volcanoes : an overview -- Plates in motion : the ring of fire, hot spots, and supereruptions -- Magma and mountains : how volcanoes erupt and the landforms they build -- Glaciers on ...

Mount Rainier is known as the Crown of the Pacific Northwest, with good reason. This ice-covered jewel of Washington's Cascade Mountain Range is the tallest peak in the Cascades and draws visitors to ...

At the risk of this blog becoming all volcanoes, all the time, I bring you... more volcanoes! Two of my favorite geobloggers wrote mustn't-miss posts on some of our Cascades volcanoes. They showcase ...

The West Coast of the United States is home to two of the nation's most iconic mountain ranges: the Sierra Nevada and the Cascades. While both of these places boast innumerable natural charms, there ...

Scientists examine a large-volume spring in young volcanic rocks of the Mckenzie River watershed on the west side of the Cascade topographic crest that was monitored as part of this study. Oregon’s ...

The Pacific Northwest: The name implies that the ocean defines this region. And we’re not here to argue that a gazillion tons of seawater is irrelevant. But—no disrespect to Poseidon—when it comes to ...

One of the most deadly and dangerous volcano hazards isn’t lava. Mudflows called lahars can come without clear warning.

Scientists have mapped the amount of water stored beneath volcanic rocks at the crest of the central Oregon Cascades and found an aquifer many times larger than previously estimated -- at least 81 ...