Yellowstone: Top Photos

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

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
Ghost trees rising from the Mammoth Hot Springs terraces — they grew during a dormant period, then were mineralized when the springs came back to life. The scale here is easier to read than from a distance. © Thegreenj, CC BY-SA 3.0, via Wikimedia Commons

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