Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...
Take a tour through volcanic history on the edge of the Sierra Nevada near Mammoth Lakes, California. Between the tall ...
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 ...
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