POTD: Pastel Fountains

POTD: Pastel Fountains
April 21, 2016 Brian Truono
The travertine terraces of Yellowstone National Park’s Mammoth Hot Springs are intricate fountains built out of limestone from deep underground. As the geothermal water rises to the surface, a trickle of minerals layer on top of previous deposits. Colorful patches of pinks, oranges and pastels are actually alive – created from heat-loving thermophile organisms. These beautiful stone cascades change readily as the Earth’s magmatic caldera churns below the surface of the park. View Print Options

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