Arizona The Grand Canyon is a testament to the earth's artistic powers, with its sprawling vistas and breathtaking colors.

A pack of wolves took down a bison in Yellowstone National Park and attracted a crowd of people — that the rest of the bison herd then charged into.

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

Creel and his colleagues have been researching wild dogs and lions in two Zambian national parks for more than a decade.

Footage shows the black wolf with a mystical quality – as other wolves remain mostly hidden – amid steam at a Yellowstone thermal area.

This guide to Jackson Hole, Wyoming will offer travelers lots of options of things to do there in the winter besides skiing.

The black and white checkered floor gleams like it’s fresh out of the 1950s, probably because it is. Red vinyl booths line ...

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 ...

Yellowstone is home to nearly 5,000 bison, which must contend with wolves in the winter, and wolves and grizzly bears during ...

Even if the resolution is ultimately signed by Gov. Mark Gordon, its supporters don’t anticipate Congress doing anything, ...

From the national parks of the Rocky Mountains to the music history of Nashville, these American adventures are calling ...

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