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

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.

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

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

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

Recent social media posts claiming animals are fleeing Yellowstone National Park have caused widespread concern for fear of a ...

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

"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 ...

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

The bear’s escalating behavior — including property damage and obtaining a significant food reward — posed a clear threat to visitor safety and warranted removal, Yellowstone National Park officials s ...