Millions of years ago, a volcano created Wheeler Geologic Area. We visited the hoodoo-filled landscape and learned what it ...

It happened on Saturday morning, June 21, at the park’s Grand Prismatic Spring, Michael Poland, geophysicist with the U.S.

The Blue Angels' F/A-18E/F Super Hornet #6 is photographed before practice for the Yellowstone International Air Show at the Billings Logan International Airport on Thursday morning.

Last year, almost 400,000 vehicles entered Yellowstone from the north. On busy days, traffic is sometimes backed up from the park entrance across the bridge, about a half-mile away.