When the Washburn Expedition explored the area in 1870, Nathaniel Langford described Mud Volcano as "greatest marvel we have yet met with."
- See the bubbling, seething spring of the Mud Volcano in Yellowstone.
- See a frightening steam tongue lashing out from a cave at Dragon’s Mouth Spring.
- Experience a ranger program to learn more about the area of Mud Volcano.
- Easily reached north of Yellowstone Lake on the way to Hayden Valley.
What can I see and do at the Mud Volcano?
- Mud Volcano: Once a large mud dome, the mud volcano erupted to its shape today. You may smell this bubbling mud pot before you see it.
- Dragon's Mouth Spring: This steaming hot spring has had a number of different names.
- Sulphur Caldron: Across the highway, visit the Sulphur Caldron, the most acidic hot springs in the park.
- Ranger Program: During the summer months, the Mud Volcano Ramble is a daily ranger program that offers a bit more insight into these amazing features. Ranger Program Schedule.
Where is the Mud Volcano?
The Mud Volcano is located north of Yellowstone Lake on the way to Hayden Valley. From Fishing Bridge, head north on the Grand Loop Road towards Canyon Village. The Mud Volcano turnout will be on your left.
When can I visit the Mud Volcano?
The Yellowstone Mud Volcano is only accessible during the summer and fall seasons.