IDAHO FALLS – An avalanche warning is in effect for mountain areas near Island Park and West Yellowstone. The National Weather Service in Pocatello issued the warning just before 7:30 p.m. Sunday.

Yellowstone is most famous for huge explosive eruptions that create large calderas. Outside Yellowstone Caldera, however, ...

For decades, scientists knew magma was simmering beneath the earth at Yellowstone National Park. A team of researchers ...

Geoscientists have discovered a magma cap at Yellowstone National Park that is likely playing a critical role in preventing a ...

A tourist received jail time after she ventured off the boardwalk and about 10 feet onto the cone of the Old Faithful geyser at Yellowstone National Park, federal officials said. Photo by Judy ...

A brave little grizzly bear cub was spotted exploring Yellowstone National Park with its mom. Screenshot of MontanaWild_'s video on Instagram A tiny grizzly bear cub was spotted exploring ...