The blue water spring is about 13 feet in diameter and 1 foot below the rim, USGS said. The water in the pool was measured at ...

Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. It may have coincided with a ...

More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.

However, this was not a video of Yellowstone mountain lions migrating south to Utah. There was no evidence that the park's ...

Yellowstone National Park, known for its stunning landscapes and geothermal features, is sitting atop one of the most ...

Why are the animals leaving Yellowstone National Park? Videos featuring mountain lions, bears and more go viral after the ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from James Mauch, geologist with the ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

It happened on Saturday morning, June 21, at the park’s Grand Prismatic Spring, Michael Poland, geophysicist with the U.S. Geological Survey and scientist-in-charge of the Yellowstone Volcano ...

The giant supervolcano that lies under Yellowstone National Park is cooling off in the west but staying hot in the northeast.

For decades, researchers in and around Yellowstone National Park have used seismic waves to map the hot mush below the Earth’s surface. Now, they're adding more to that toolkit.