The edge of the Grand Prismatic Spring in Yellowstone National Park is a layered rainbow of colors from azure blue through multiple shades of yellow and orange and even purple. The blue of the water is caused by its incredible clarity - the water is too hot for anything to live in it. The different colors of bands surrounding the spring are cause by different species of micro-organisms, each able to tolerate a narrow range of very hot temperatures.
The edge of the Grand Prismatic Spring in Yellowstone National Park is a layered rainbow of colors from azure blue through multiple shades of yellow and orange and even purple. The blue of the water is caused by its incredible clarity - the water is too hot for anything to live in it. The different colors of bands surrounding the spring are cause by different species of micro-organisms, each able to tolerate a narrow range of very hot temperatures.
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