![](http://www.alamy.com/thumbs/6/35F088BD-C4AA-49D1-A2E2-5BB94E676036/2DAH6TW.jpg)
Churning Cauldron , frothing and fuming as heat and gas rise from Yellowstone's magma chamber.
Size: 6000px × 4000px
Location: Yellowstone National Park, Wyoming, USA
Photo credit: © Barbara Ash / Alamy / Afripics
License: Royalty Free
Model Released: No
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