A newly discovered thermal vent in Yellowstone National Park has caught the eye of both scientists and tourists, not because of any major geological shifts but because of its visibility from a popular road.
The thermal feature was first spotted by geologists last summer after they discovered a steam vent emitting temperatures of 171 degrees Fahrenheit at the base of a wooded hill. They said a thin layer of gray mud confirmed the vent's recent formation.
Mike Poland, the scientist in charge of the observatory, said that new features like this one are common in Yellowstone but what sets this one apart is its location.
"The noteworthy part ... was just that it was so noticeable. But the overall idea that there would be a new feature that formed is pretty normal," Poland said.
This new steam plume is situated within a 200-foot area of warm ground and appears to be linked to hot water that surfaced as a new feature about 700 feet away in 2003. The plume diminished over the winter, and its visibility this summer depends on whether water in the vent will suppress the steam, geologists say.
The park's thermal features often change, with thousands of geysers, hot springs, and mud pots. Old Faithful Geyser remains a popular attraction, while other features come and go.
"There’s so many thermal features. Not only do they come and go, but they change," Poland noted.
In the summer of 2024, Yellowstone experienced several notable hydrothermal events, including an explosion at Biscuit Basin and another at Norris Geyser Basin.
Geologists speculate that the new feature might be hydrologically connected to the activity that began in 2003. They said that if a line was run along the axis of the older active area, the new feature would intersect with it, which follows a trend of faults that run north from the Norris Geyser Basin to Mammoth Hot Springs and further.