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

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

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

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

Scholars and schoolchildren alike have generally classified animals by the foods they eat: carnivores eat meat; browsers ...

Christmas came early for geologists at Yellowstone National Park this April when a regularly scheduled survey resulted in ...

Find the answer for State that contains about one percent of Yellowstone National Park from the people who brought you the ...

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

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.

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

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