A park scientist noticed it about two weeks after a hydrothermal explosion along a boardwalk during the park’s overactive summer.

A newly openedvolcanic vent has been discovered in Yellowstone National Park, emitting thick plumes of steam and prompting scientists to investigate a potential link to the supervolcano’s complex hydrothermal system.

According to the United States Geological Survey (USGS), the Roadside Springs thermal area is a collection of distinct areas of altered rock and hydrothermal features. The new steam vent is at the foot of a rhyolite lava flow almost 10 feet above the marshland below and is part of an area of warm,