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Photographer's Note

this is Emerald Pool, the most colorful and famous of the Black Sand Basin's features in the Upper Geyser Basin. the yellow and orange fringes forming the outer ring are the result of a lower temperature, 67 degrees Celsius (154 degrees Fahrenheit), which allowed bacteria and algae to grow on the lining of the pool.

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RAW, ISO 100, 13mm focal length, spot metering.

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Additional Photos by Kristine KL (avene) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1587 W: 134 N: 2932] (12675)
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