Yellowstone, a popular tourist destination and namesake of an equally popular TV show, was the first-ever national park in ...

Yellowstone National Park is huge: 2,221,766 acres or 3,437.5 square miles, over twice the size of the state of Rhode Island.

The National Parks Service has confirmed that wildlife is not leaving Yellowstone National Park in "large numbers" after an ...

A proposal by a Wyoming Republican representative to remove Endangered Species Act protections from Yellowstone grizzly bears ...

Each color relates to a range of numbers associated with air quality on a scale designated by the Environmental Protection ...

Geologists working in Yellowstone National Park discovered a new pool of strange light blue water this spring. Using ...

Ostlund was a popular Yellowstone County politician, a longtime Republican and staunch conservative voice in Montana politics.

Nearly a dozen rivers in western Montana and a handful of rivers inside the borders of Yellowstone National Park are under restrictions as biologists seek to reduce angling-related sources of ...

Hikers from across the country opted to use their vacations to assist Bureau of Land Management employees build a new section ...

This Nov. 21, 2016 file photo shows Emigrant Peak towering over the Paradise Valley in Montana north of Yellowstone National Park. A gold exploration proposal in the area has suffered a ...

Trump is meeting with Israeli Prime Minister Benjamin Netanyahu at the White House to discuss a possible Gaza ceasefire and ...

Retired ICE special agent Victor Avila discusses the recent attack on a border patrol facility in McAllen, Texas and ...