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

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, ...

Wolf 1478F could have become the Junction Butte pack alpha, experts say.

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.

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

Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

MAMMOTH HOT SPRINGS, WY – Starting this year, Yellowstone National Park will extend the fishing season on three rivers in the ...

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