Yellowstone: Top Photos

Geysers, bison herds, and wild landscapes that teach kids the power of nature

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 — they grew during a dormant period, then were killed when the springs reactivated and deposited calcium carbonate around their roots. The terraces are constantly changing. © Brocken Inaglory, CC BY-SA 3.0, via Wikimedia Commons

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