Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...

More than a century has passed since the last eruptions of Lassen Peak and Mount Shasta, yet both remain active and are among the top two highest-threat volcanoes in California, according to the U.S.

California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing information to authorities and the public ...

California’s 14,179-foot Mount Shasta is an ideal classroom for budding alpinists. The stratovolcano rises nearly 7,000 vertical feet above the valley floor, and the top portion of the peak is ...

Nick Meyers has spent more than two decades on Mount Shasta, currently serving as the lead climbing ranger and director of the Mount Shasta Avalanche Center. But even with all that experience, the ...

California’s volcanic giants are hard to miss. Mount Shasta looms over the Oregon border. Lassen Peak, the southernmost active volcano in the Cascade Range, erupted just over a century ago, blasting ...

Smoke billows from the mouth of Mt. Shasta like a thunderous cough. Within moments, clear skies turn gray, and the sun vanishes behind thick, shifting layers of volcanic gas and ash. Visitors snap ...

Add Yahoo as a preferred source to see more of our stories on Google. Smoke billows from the mouth of Mt. Shasta like a thunderous cough. Within moments, clear skies turn gray, and the sun vanishes ...