Steaming thermal spring housed within a cavern-like opening that produces roaring sounds and surging waves of hot water driven by geothermal activity.
Private vehicle: $35 (7-day pass)
Motorcycle: $30 (7-day pass)
Individual (walk/bike): $20 (7-day pass)
Annual Yellowstone Pass: $70
How to Get There
From Cody (59 mi): Follow US-14/16/20 west through Yellowstone's East Entrance, continue past Yellowstone Lake toward the Mud Volcano area, and follow the boardwalk to Dragon's Mouth Spring.
Overview
The Dragon's Mouth Spring is one of Yellowstone National Park's most unusual hydrothermal features, located within the Mud Volcano thermal area. The spring occupies a cave-like opening in a hillside where superheated water continuously surges and churns beneath the rocky overhang. As steam escapes from the cavern, the feature often produces deep rumbling and roaring sounds that resemble the breath of a mythical dragon, giving the spring its memorable name. The combination of sound, motion, and steam creates one of the park's most dramatic geothermal spectacles.
Visitors approaching the spring along the boardwalk are greeted by billowing clouds of vapor and rhythmic waves of hot water crashing within the cavern. The surrounding Mud Volcano area showcases Yellowstone's dynamic volcanic system through bubbling mud pots, fumaroles, sulfur-rich deposits, and acidic thermal features. Together, these attractions offer a fascinating look at the immense geothermal forces operating beneath the surface. Dragon's Mouth Spring remains a favorite stop for photographers and geology enthusiasts seeking one of Yellowstone's most distinctive natural wonders.
This article uses material from the Wikipedia articles and official tourism pages for the Mud Volcano area and Yellowstone National Park, which are released under the Creative Commons Attribution-Share-Alike License 3.0.
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