Yellowstone: Top Photos

The caldera that powers half the world's geysers

Dead trees in the terraces of Canary Spring at Mammoth Hot Springs, Yellowstone National Park grew during inactivity of the mineral-rich springs, and were killed when calcium carbonate carried by spr
Dead trees in the terraces of Canary Spring at Mammoth Hot Springs, Yellowstone National Park grew during inactivity of the mineral-rich springs, and were killed when calcium carbonate carried by… © Brocken Inaglory, CC BY-SA 3.0, via Wikimedia Commons

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