Known for its active geysers and other hydrothermal supremacy, Yellowstone National Park also extends to two more states.

Yellowstone’s popularity overshadowed a relatively unknown Oklahoma national park. With so much competition, the park no longer exists.

From national monuments and tiny towns to ski resorts and the Sawtooth Mountains, here are the best places to visit in Idaho.

The Yellowstone region today is wonderland. It is full of spectacular geysers and colorful hot springs, home to lakes and ...

Yellowstone has been a site of persistent volcanic activity for 2 million years. But what did the region look like before the volcanoes started to erupt?

Yellowstone has been the site of persistent volcanic activity for more than 2 million years. But what did the region look ...

He’s not Kevin Costner's character, but Bill Galt is well aware that Paramount Network's hit show "Yellowstone" appears to be ...

Since “Yellowstone” first aired, the forces of growth and development haven’t been contained to the screen and now Montana builders are trying to keep up.

After months of delays caused by creative disputes between Taylor Sheridan and series star Kevin Costner, Yellowstone’s beleaguered final season finally came to a close last week. Good riddance.

Gov. Mark Gordon has completed one of the final bureaucratic steps needed to sell the Kelly parcel to Grand Teton National ...

Leaving the Forest Service, Carolyn Upton said, "is going to be hard. This has been my routine for a long time. But I'm glad ...