Obsidian Cliff is the result of thick, rhyolite lava flows from the last caldera eruption 180,000 years ago. Image credit: USGS/S.R. Brantley A popular subject among doomsayers, the Yellowstone ...

Henry Wood Elliott was a dedicated conservationist and explorer who, in 1871, helped create the first bathymetric map of Yellowstone Lake. Unlike many of his contemporaries, however, he declined to ...

With more trips planned for this fall and next summer, there is strong hope that the map will be done before the park's 150th Anniversary in 2022!

YELLOWSTONE scientists discovered the magma pocket hiding below Yellowstone National Park is more than double the size they originally thought, according to statistics.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from R. Greg Vaughan, research ...

This method allowed the researchers to create high-resolution maps to a depth of between 492 and 2,296 feet (150 to 700 m) and low-resolution maps to a maximum of 1.5 miles (2.5 kilometers), Finn ...

The hot molten rock beneath Yellowstone National Park is 2 ½ times larger than previously estimated, meaning the park’s supervolcano has the potential to erupt with a force about 2,000 times ...

Scientists are tracking changes at the giant supervolcano that lies under Yellowstone National Park, but they say there's no need to worry at the moment. “The western part of the Yellowstone ...

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.

At the Yellowstone supervolcano, the magma reservoir under the caldera at Yellowstone National Park holds a lot more melt than scientists previously thought.