It was. SEE ALSO: What will happen when the next supervolcano erupts, according to NASA The steaming hydrothermal vent is located at the base of an ancient lava flow, and geologists measured its ...

YELLOWSTONE NATIONAL PARK – A new volcanic vent was discovered at Yellowstone National Park, the U.S. Geological Survey (USGS) announced this week. The USGS noted the feature is a hydrothermal vent, ...

YELLOWSTONE NATIONAL PARK – A new volcanic vent was discovered at Yellowstone National Park, the U.s. Geological Survey (USGS) announced this week. The USGS noted the feature is a hydrothermal ...

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