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 ...

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

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

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

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

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 ...

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 ...

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

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

We know the caldera has made three impressive eruptions in its history, 2.1 million years ago, 1.3 million years ago, and about 631,000 years ago, reshaping the area’s landscape. What everyone ...