Mount Mazama caldera, after the cataclysmic eruption 7,700 years ag...
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Mount Mazama caldera, after the cataclysmic eruption 7,700 years ago—artistic rendering by Paul Lockwood. Courtesy of the National Park Service.
Mount Mazama caldera, after the cataclysmic eruption 7,700 years ago—artistic rendering by Paul Lockwood. Courtesy of the National Park Service.