Montana is suing Yellowstone National Park over a plan to increase the number of bison in and around the park and establish ...

One of Yellowstone National Park’s most famous gray wolves, an 11-year-old matriarch who was blind in one eye, has died after ...

Plus: Some economic optimism after Trump's win. SCOTUS Chief Justice John Roberts warns that courts' independence is under ...

Montana state officials are suing Yellowstone National Park over its bison management plan. The case argues that park officials have intentionally cut Montana out of management plans or ignored the ...

Interior Department Announces Permanent Protections for Critical Land and Wildlife Migration Corridor in Grand Teton National ...

Large explosive eruptions occur in Yellowstone around once every 700,000 years, according to the U.S. Geological Survey.

A long-simmering battle between Yellowstone National Park officials and the Gianforte administration in Montana came to a ...

A legal dispute has arisen over the recently completed Bison Management Plan, which was announced in July by Yellowstone ...

One viral video shows how unpredictable a bison stampede can be — and why it's essential to give the wild animals their space.

A state legislator from Teton County wants to take river otters off Wyoming’s protected species list, where it’s been for ...

New mapping of the magma lying beneath Yellowstone National Park sheds light on where volcanic activity is shifting, and the ...

The giant supervolcano that lies under Yellowstone National Park is cooling off in the west but staying hot in the northeast.