According to a statement from Montana Fish, Wildlife and Parks (FWP), officials started investigating after they received a ...

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

A gray wolf was illegally shot and killed just north of Yellowstone National Park last month. According to wolf advocates, ...

Facebook commenters were deeply annoyed. Onlooker sparks outrage with photos of tourist's thoughtless behavior at US national ...

A grizzly spotted out wandering in Yellowstone National Park on Monday might be up from hibernation incredibly early or awake ...

Rangers at Yellowstone National Park are reportedly trying to solve the mystery of what happened to a well-known female wolf ...

Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily by hydrothermal activity ...

The new crop of grizzly cubs that will emerge this spring to the delight of visitors in Yellowstone have likely already been born, researchers say.

One local wildlife advocate told PEOPLE the wolf's killing was a "heartbreaking event" for the famed Junction Butte wolf pack ...

Image Credit: Yellowstone ...

Lassen Volcanic National Park, about a four-hour drive north of San Francisco, feels like a secret getaway.