The teenager was on a hike southeast of Old Faithful when the incident occurred, according to a Park Service news release.

There is no evidence of a mass exodus of animals fleeing Yellowstone, a spokeswoman for the US national park in Wyoming told ...

The Petrified Forest holds trees buried by volcanoes 50 million years ago, while Yankee Jim features some of the oldest ...

The least visited U.S. states have the least tourists, but they're also home to some of the country's most dazzling sights and most comfortable accommodations.