Yellowstone: Top Photos

The caldera that powers half the world's geysers

Dead trees in the terraces of Mammoth Hot Springs, Yellowstone National Park, Wyoming, US. These trees grew during inactivity of the mineral-rich springs, and were killed when calcium carbonate carrie
Dead trees in the terraces of Mammoth Hot Springs, Yellowstone National Park, Wyoming, US. These trees grew during inactivity of the mineral-rich springs, and were killed when calcium carbonate… © Thegreenj, CC BY-SA 3.0, via Wikimedia Commons

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