Bubbling Mudpots

Mud Pots - Yellowstone NP The more popular geysers often overshadow the mudpots but be aware that when you are near mud pots you are close to one of the major vents from which lava flowed through Yellowstone's caldera. Sometimes you can smell the distinctive sulfur of the mud pots from the hydrogen sulfide gas! An area of colorful, hot mud springs is located along a one mile loop trail east of the park’s Grand Loop road, about two and a half miles south of Norris Junction According to park information, this area was closed for part of the summer of 2008 when a woman was injured after a path collapsed. The area she was walking on was previously unknown to be vulnerable to underground thermal activity. Walkways have been inspected and new boardwalks built.