To the east of Mount Rainier are the remains of a once-mighty Cascade volcano. In the hills outside of Naches, Washington, at the foot of Mount Rainier are the remains of a much older volcano. Join ...

“In the Cascades, broadly, we’re located along a subduction zone,” explained United States Geological Survey (USGS) Research Geologist Emily Johnson. “So that's where there's an oceanic plate that's ...

Mount Rainier is one of about two dozen active or recently active volcanoes in the Cascade Range, an arc of volcanoes in the northwestern United States and Canada. The volcano is located about 35 ...

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 ...

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 the ...

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Mount Rainier (Figure 2.1) is one of about two dozen recently active volcanoes in the Cascade Range, a volcanic arc formed by subduction of the Juan de Fuca plate beneath the North American plate.