Located in the heart of Yellowstone National Park, the Mud Volcano is a fascinating geothermal area that thrills visitors with its bubbling mud pots and hissing steam vents. Named for its largest feature, the area provides an unforgettable experience for any traveler seeking to witness the raw power of nature.


The Mud Volcano was discovered by early explorers in the 19th century. It was originally much larger, but in 1870, a violent eruption dramatically altered the landscape, causing the actual Mud Volcano to sink into the ground. The area continues to change and evolve due to the ongoing geothermal activity.

How to Get There

The Mud Volcano area is located in the central part of Yellowstone National Park, midway between Fishing Bridge and Canyon Village. It is easily accessible via the Grand Loop Road. There is a large parking area to accommodate visitors.

List of Attractions

  • Mud Volcano: The namesake of the area, a bubbling pool of mud.
  • Dragon’s Mouth Spring: A steam-filled cave with a roaring sound.
  • Black Dragon’s Caldron: A large, boiling mud pot.
  • Sour Lake: A hot, acidic pool with a strong smell of sulfur.

Ticket Information

Admission to the Mud Volcano area is included with the entrance fee to Yellowstone National Park. The current rates are $35 per vehicle or $20 per person if entering by foot, bicycle, or motorcycle. An annual pass is available for $70.

List of Tips for Visiting

  • Be sure to stay on the boardwalks and designated trails for safety.
  • The area can be quite smelly due to the sulfur gas, so be prepared.
  • Visit early in the morning or late in the afternoon to avoid the crowds.
  • Don’t forget to bring your camera, the mud pots make for unique photos!

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