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Grassy Spring

A view of the colorful thermal runoff flowing from Mammoth Hot Spring's Grassy Spring.

 

"Grassy Spring bubbles above the boardwalk and spills down a surface of rippled orange travertine deposits. Thermophiles, microorganisms that love heat, are responsible for the rich color of Grassy Spring and other hydrothermal features in Yellowstone. Yellow marks extremely hot water while greens and blues typically mark pools cooler than 140 degrees Fahrenheit."

re: hikespeak.com

 

Another closer view of the spring in comments.

 

Friday's here! Have a wonderful day and weekend!

 

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Uploaded on August 31, 2018
Taken on September 26, 2017