One of the interesting features that you can see during a trip to Yellowstone National Park is called the Dragon’s Mouth. This geothermal feature is located in Hayden Valley, north of the Fishing Bridge. The steam producing pool of hot water is just an incredible sight and emits some pretty frightening noises as well.
A posted sign explains that it was named in 1912 by an unknown visitor who said the rumbling sounds and splashing water reminded him of a dragon’s mouth. The rumbling is heard way before you get to the board walk observation deck. The sound reminds one of a distance clap of thunder. The water then comes splashing out of the hole in the side of the bank. Steam was pouring out of the cave like opening the day we were there.
Find maps and visit planning information at the Yellowstone National Park website.