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Yosemite's ultra-deep canyon may have been carved in part by a ghost volcano and river, provocative research suggests
A provocative new hypothesis suggests that Yosemite Valley was carved by an ancient volcano and a disappearing river, both of which have long since eroded away. Geologists have long debated why ...
Millions of visitors head to these national parks in California to explore its coastline, forests, mountains, deserts and ...
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