Yellowstone National Park closed the Madison River, the Firehole River and the Gibbon River downstream of Norris Campground, ...

A black bear in a whitebark pine in Yellowstone National Park | Yellowstone National Park MAMMOTH HOT SPRINGS, Wyo. –- A ...

Yellowstone National Park officials have euthanized an adult female black bear following a series of troubling incidents at a ...

A viral video claiming that a group of bears were leaving Yellowstone National Park amid supervolcano fears has been debunked ...

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 ...

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

A video of bears in a South Dakota-based wildlife park was misleadingly shared as a video of bears leaving Yellowstone in ...

"We go to great lengths to protect bears and prevent them from gaining access to human food in all areas of the park,” said Kerry Gunther, Yellowstone bear management biologist. "But occasionally, a ...

Last April, geologists conducting routine maintenance at temperature logging stations in Yellowstone National Park’s Norris ...

A new light blue hot spring has formed in Yellowstone’s Norris Geyser Basin after months of small hydrothermal explosions.

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 ...