Formed by a volcanic collapse thousands of years ago, Crater Lake sits within a vast caldera in Oregon. Its clarity and depth ...

Mammoth Lakes, as seen in 1995, with Long Valley in the distance. The valley is actually a collapsed volcanic crater, formed about 760,000 years ago by a violent eruption. (Bib Galbraith / Associated ...

A striking image, shared byNASA’s Earth Observatory, reveals two volcanic lakes in Nicaragua that appear to resemble a pair of eyes staring up into space. Situated on the Chiltepe Peninsula, these ...

Volcanic lakes / Bruce Christenson, Karoly Németh, Dmitri Rouwet, Franco Tassi, Jean Vandemeulebrouck, and Johan C. Varekamp -- Volcano-hydrologic hazards from volcanic lakes / V. Manville -- ...

Lake Mead's receding water levels are now revealing ancient volcanic eruptions from millions of years ago. Lake Mead is the biggest man-made reservoir in North America, formed by the Hoover Dam. Its ...

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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 ...

Where earth meets fire and destruction reigns, some animals find the ideal setting to procreate. Here are three animals who thrive in harsh, volcanic conditions. Volcanoes are nature’s most formidable ...