![](http://www.alamy.com/thumbs/6/CBC154A2-C7A7-44B6-B172-7794D6DCF287/2D1FNW9.jpg)
Bacterial mat, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA
Size: 7360px × 4912px
Location: Yellowstone National Park, Wyoming, USA
Photo credit: © dave stamboulis / Alamy / Afripics
License: Royalty Free
Model Released: No
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