Photos from a 5 day trip to Yellowstone at the end of September 2009. Photos from my 2008 trip to Yellowstone can be found in the Yellowstone 2008 gallery.
Hot spring and runoff trails at Mud Volcanoes. The steam in the background is from a large vent.
Hot spring and runoff trails at Mud Volcanoes. The steam in the background is from a large vent.
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