![](http://www.alamy.com/thumbs/6/77598F2D-85FE-41B8-925D-6B69D0B72843/2CJGNKJ.jpg)
Big Boiler pool and fumaroles steam vents and boardwalk at Bumpass Hell area in Lassen Volcanic National Park, California, USA
Size: 3872px × 2592px
Location: Lassen Volcanic National Park, California, USA
Photo credit: © Witold Skrypczak / Alamy / Afripics
License: Royalty Free
Model Released: No
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