Grand Prismatic Spring
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|This partial panorama image is Grand Prismatic Spring in Yellowstone National Park. The color is made by bacteria of different kinds living in different micro-ecosystems of the hot pool. I hiked to the top of a nearby hill (trail-less) to get this photo. Normally this is photographed from the air. Unfortunately, trees from the 1988 fire were in the way.|
Image © James N. Perdue