Yellowstone tourists were sent running after a small hydrothermal explosion sent boiling water, steam and debris flying over a boardwalk in the national park's Biscuit Basin.

One hundred years ago, on June 23, 1925, a mountainside in the Gros Ventre Range in northwest Wyoming collapsed, unleashing ...

Spend time on and off the water when you visit the quiet and beautiful Henry's Lake State Park in Island Park, Idaho.

Yellowstone National Park has a new plan for dealing with geologic hazards like thermal explosions and earthquakes for the first time in 11 years ...

The Trump administration has ended a decades-old rule protecting roadless areas in national forests, which could open ...

Complete guide to Grand Teton National Park in Wyoming. Everything you need to know to plan an epic trip to this amazing ...

It's a trek to get to Yellowstone National Park. And even then, the adventure has only just begun. Yellowstone National Park ...

One hundred years ago, on June 23, 1925, a mountainside in the Gros Ventre Range in northwest Wyoming collapsed, unleashing ...

What if you only had a day or two to spend in Yellowstone National Park? Where would you go? What would you photograph? If ...