Rumors abound as animals are leaving Yellowstone National Park en masse. Is the Yellowstone supervolcano about to erupt?

WEST YELLOWSTONE, Mont. — Search teams located the site of an airplane crash that killed three people near Yellowstone ...

Are we ready for a mega-blast from the supervolcano in Yellowstone National Park?

They say you're always stronger in numbers, but this wolf pack learned the hard way that that's not always the case.

Zion, Grand Canyon, Yellowstone, Yosemite, and Glacier are among the most popular U.S. national parks—here's how to get off the beaten path when visiting.

Located in the Yellowstone’s Porcelain Basin, the new thermal feature is believed to have appeared on Christmas Day ...

In a hot spring at Yellowstone National Park, a microbe does something that life shouldn’t be able to do: It breathes oxygen and sulfur at the same time.

Snowpack isn’t what it used to be. Severe drought has set in for portions of western Wyoming river basins, even after decent snow years, due to factors exacerbated by climate change.

Less famous but just as unforgettable, these state parks showcase iconic landscapes without the long lines at America’s national parks.

It took three heavy-duty wrecker trucks hours to recover a semitrailer hanging over a cliff on Wyoming Highway 14-A on Tuesday. The driver wasn’t ...

A black bear that scaled a pole to get human food and later crushed an empty tent at a backcountry campsite was killed by Yellowstone National Park staff on July ...

Scientist Alysha Armstrong says AI is helping scientists get a better understanding of the power of earthquakes in ...