About 74,000 years ago, the Earth experienced an event so immense that some scientists believe it nearly wiped out our species. This event is known as the Toba catastrophe, named after Lake Toba on ...

Hayden Valley in Yellowstone National Park is one of two epic wildlife viewing destinations. If you are looking to see ...

"The discovery emphasizes the dynamic nature of Yellowstone's thermal activity," Yellowstone Volcano Observatory's Mike ...

Yellowstone geologists discovered the baby hydrothermal feature in April while doing routine work at Norris Geyser Basin, the ...

The National Park Service is clearing up any misconceptions on whether wildlife is migrating away from Yellowstone National ...

In a new study, published July 18 in the high impact journal Science Advances, Western engineering professor Bing Li and his ...

There’s a new milky blue pool in Yellowstone National Park.

Social media captures of droves of animals fleeing Yellowstone National Park have sparked a frenzy of worry, but officials say it's 'misinformation' ...

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

"This idea of volcanic uplift in Yellowstone is complete hogwash," Michael Poland, scientist-in-charge at the Yellowstone Volcano Observatory, said in an interview.

Test your knowledge of U.S. National Parks and their geography. Attempt this GK quiz on iconic parks, conservation efforts, ...