Buffalo galloping towards the road in Yellowstone National Park, Wyoming, USA
A wild bison in a cloud of dust after taking a mud bath and shaking off the dirt; Yellowstone National Park, Wyoming, USA
Dragon's Mouth Spring in the Mud Volcano thermal area in Yellowstone National Park, Wyoming, USA Boiling water rolls out of a small cave-like opening, steam bellowing from within. Bizarre noises emit from the opening, making the idea of a dragon's mouth rather believable.
