Mud Volcano to Dragon’s Mouth Spring

The Mud Volcano to Dragon’s Mouth Spring Trail is an easy hike in Yellowstone National Park. This trail loops around a unique area of Yellowstone with bubbling mud pools and a dragon-like hot spring. This route follows a boardwalk and is both wheelchair accessible and stroller-friendly.
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Route Description for Mud Volcano to Dragon’s Mouth Spring
The Mud Volcano to Dragon’s Mouth Spring Trail is a short and sweet hike in Yellowstone. This trail passes by mudpots and hydrothermal features with a particularly pungent smell. The microorganisms that live in these features convert hydrogen sulfide to sulfuric acid, a compound that emits a strong “rotten egg”-like smell. The escaping gasses cause the mud to bubble and boil like a witch’s cauldron. Dragon’s Mouth itself is a stormy hot spring with a cavernous “mouth” that spits out hot steam like a dragon’s breath. If you can muster the stench, a visit to this area is worth it.
Beginning at the trailhead, follow the boardwalk counterclockwise as it loops around Dragon’s Mouth Spring and the Mud Volcano.
If you are looking for more to explore in the area, this hike can be extended along the Mud Volcano Trail.
Getting to the Mud Volcano to Dragon’s Mouth Spring Trailhead
This hike begins at the Mud Volcano Trailhead on the east side of Grand Loop Road, approximately 15.6 km south of the Canyon Village.
Route Information
Mud Volcano to Dragon’s Mouth Spring Elevation Graph
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Nearby Trails
- The Howard Eaton Trail via the Wapiti Lake Trailhead
- Wapiti, Clear Lake, Ribbon Lake, and South Rim Trail
- The Howard Eaton Trail
- Clear Lake and Artist’s Point Loop via the Wapiti Lake Trailhead
- Wrangler Lake Trail
- Elephant Back Mountain Trail
- Canyon Rim South Trail to Point Sublime
- Hayden Valley Trail
- Yellowstone Natural Bridge Trail
- Upper Falls, Lower Falls, and Artist’s Point Trail
- Mud Volcano Trail
- North Rim Trail to Yellowstone Falls, Crystal Falls, and Inspiration Point