Beneath the steaming geysers and bubbling mud pots of Yellowstone National Park lies one of the world's most closely watched volcanic systems. Now a team of geoscientists has uncovered new evidence ...

Roads and one park entrance for Yellowstone National Park are set to open this Friday, weather permitting, ahead of National ...

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 ...

Rangers at the country’s oldest national park plan to open major roadways and entrances to the site starting Friday as part ...

Beneath the steaming geysers and bubbling mud pots of Yellowstone National Park lies one of the world’s most closely watched ...