Yellowstone 2007  
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The colors in the springs are actually produced by microorganisms that thrive in this inhospitable environment.

The colors in the springs are actually produced by microorganisms that thrive in this inhospitable environment.


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Gallery: Renée and Julio's Gallery navigate UP Album: Julio and Renee's Travels navigate UP Album: Yellowstone & Grand Tetons 2007 navigate UP Album: Yellowstone 2007 navigate UP
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