Mammoth Hot Springs				Yellowstone National Park
A bird perches on a travertine ledge at the south end of the Main Terrace, top left. No water or food here fit for animals. Ridges of calcium carbonate, the main building blocks of the terraces, form on the bottom of a shallow pond, above. Terraces in the process of building, lower right. Flowers stand their ground near the edge of the Main Terrace. Digital raw images.				Mammoth Country
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