You know that very special rock you couldn’t resist picking up and taking home? The one with the uncanny shape, the surprising colors, the strange veins? On Saturday, you can take that rock to a ...

The 1980 eruption cycle made Mount St. Helens one of the most famous and now best-monitored volcanoes in the Cascades. But it is far from the only volcano in the range. From southern British Columbia ...

A swarm of small earthquakes is still shaking Mount Rainier, marking the most significant seismic activity at the Cascade volcano in decades. The U.S. Geological Survey’s Cascades Volcano Observatory, ...

The county blamed decreasing revenues and increasing costs for Sunstone Way’s demise. The nonprofit will close its doors on July 1. Elephants Delicatessen owner says suspect in fire has history with ...

Thirty-one years ago, John Ewert was a college graduate fascinated with Mount St. Helens. Today, he's the new scientist in charge of the U.S. Geological Survey's Cascades Volcano Observatory in ...

Whenever Mt. Hood erupts, Portland will be glad to have David George. As a U.S. Geological Survey mathematician, George models landslides and lahars at the Cascades Volcano Observatory in Vancouver, ...

“It’s now a larger swarm than anything we’ve seen since we’ve been (seismic) monitoring anything at Mount Rainier,” Alex Iezzi, a research geophysicist, said in an interview Thursday. Researchers ...

Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...