Yellowstone National Park
Wyoming, Montana, Idaho
Beauty Pool and Chromatic Spring
(Upper Geyser Basin)

Beauty Pool and and nearby Chromatic Pool are among the most colorful pools in the geyser basins. The temperature of these pools are 164-175°F. Their colors start with a deep blue center then the colors radiate out to yellow, orange and red. The two pools are interrelated. When one pool begins to overflow, the water level in the other drops. This periodic shifting in energy is accompanied by a 10°F change in temperature. In recent years the water temperature has cooled, allowing an increase in bacteria and algae growth and a resulting change in color.

Chromatic Spring (above & below)

Old Faithful Streaming Video Webcam | Original Old Faithful Geyser Webcam

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More Photographs by Steve: Antelope Canyon|Monument Valley

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Revised: April 20, 2009.
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