Yellowstone National Park is a place of wonder and beauty that never ceases to amaze the millions who visit each year.

With some luck, specialized equipment, a supervolcano and a narrow hole 30 stories deep, researchers demonstrated that earthquakes shake up more than just rocks—they also boost microbe populations ...

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Bison, elk and other animals die in droves in Yellowstone's remote “animal boneyard.” Only a few know how to get there, ...

Yellowstone’s "secret" century-old Old Faithful stamp is available only by request and may be the last of its kind. Before ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects in history. Since their reintroduction in 1995, they have fundamentally ...

Yellowstone National Park is used to rule-breakers, but usually it's the tourists pushing their luck, not one of their own employees.

New preliminary visitation numbers from the National Park Serviceshow Glacier and Yellowstone National Parks moving in different directions last year, despite ...

Footage shows grizzly bear ambling across snow in apparent search for a snack.

A gray wolf was illegally shot and killed just north of Yellowstone National Park last month. According to wolf advocates, ...

From catching Yosemite’s Firefall to biking a car-free Going-to-the-Sun Road, these national park experiences only happen ...