The formation of Heart Mountain near Cody is a story of a block of rock the size of Rhode Island moving at 700 mph, an ...

Tourists and officials were startled by a hydrothermal explosion at Black Diamond Pool in July 2024. Geoscientists are working out how and why it occurred to better understand these hazardous events.

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 ...

Yellowstone National Park has over 1,000 miles of trails and nearly 300 designated backcountry campsites, allowing people to ...

Visitors to Yellowstone National Park were shocked when they saw what appeared to be a dog with a collar running loose in the area—only to realize it was a large black wolf.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Blaine McCleskey, research ...

Yellowstone National Park's superintendent disputes a group's contention the agency has waived $1.2 million in right-of-way fees for a company that is installing 187 miles of fiber optic cable in ...

BILLINGS - Friends and colleagues are remembering Yellowstone County Commissioner John Ostlund, who died Thursday in a plane crash at the age of 73. “I feel bad for Christie (Ostlund's wife) and ...

Yellowstone County Commissioner John Ostlund died in a single-engine plane crash south of Billings on Thursday, June 19, 2025.

Yellowstone’s magma chamber is mostly made of a light-colored rock called rhyolite. It spreads out over an area roughly 55 miles long and 30 miles wide and reaches down to a depth of about 10 miles.