Grand Prismatic Spring
Located in Yellowstone National Park, Wyoming, the Grand Prismatic Spring is the largest natural hot spring found in the US. The spring has a scalding temperature of 160 °F (70 °C), a total depth of 160 feet and a diameter of 300 feet. The vivid, rainbow colors in the spring are the result of pigmented bacteria in the microbial mats that grow around the edges of the mineral-rich water.
Watch video:
Grand Prismatic Spring-Yellowstone National Park
References:
http://en.wikipedia.org/wiki/Grand_Prismatic_Spring
Images via Wikimedia Commons
Very cool.
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