Yellowstone National Park's nearly 3,500 square miles seep slightly across state borders into Montana and Idaho, but its major attractions are contained in the northwest corner of Wyoming.

At over 3,500 miles, Yellowstone is one of the biggest national parks in the US, spanning three states. While most of the ...

On Monday, the Department of the Interior and Grand Teton National Park announced the purchase of the 640-acre Kelly parcel ...

Forget the summer crowds, exploring wide-open landscapes by ski, snowmobile or snowshoe, and revel in a solitude that few ...

For 17 years Wallen was the team leader of Yellowstone National Park’s bison ecology program. He retired six years ago and in ...