We spent the day exploring Mud Volcano Area, and wildlife watching in the Hayden Valley.
We stopped at the Mud Volcano, Sulfur Cauldron, and Dragon's Mouth spring (second picture).
In the afternoon, we parked our RV on one of the pullouts by the road. We prepared, and ate our dinner inside our tiny motor-home. We stepped out when an animal appeared. We were able to see a grizzly bear, elk, and even a fox.