An iconic apex predator appeared through thick fog like an apparition and cautiously watched a photographer in Yellowstone ...

Researchers are urging Yellowstone officials to invest in greater protection after the findings of a new report ...

After a federal judge intervened, park rangers, wildlife biologists and forest technicians in Jackson Hole received emails ...

Glacier National Park and Yellowstone National Park both welcomed the second highest number of visitors on record last year, ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

America’s First National Park Yellowstone National Park holds the title of being America's first national park, and it was ...

New research shows that dead trees in Yellowstone National Park may pose a greater fire danger than previously suspected.

Wyoming lawmakers have voted down a resolution demanding all federal land in the Equality State except for Yellowstone ...

Theodore Roosevelt once said, “There is a delight in the hardy life of the open. There are no words that can tell the hidden ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Cathy Whitlock, Regents Professor ...

Costner's journey follows the 1903 Yosemite expedition of president Theodore Roosevelt and naturalist John Muir ...

Yellowstone National Park, the oldest national park in the USA and home to some of the most unique geological features on earth, was just shaken up by a minor e ...