The Yellowstone National Park experiences the most significant changes that do not signal with noise. The surface started to rise in the very middle of one of the busiest spots of the north rim of the ...

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

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, ...

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 ...

Millions of people head to Yellowstone National Park each year, making traffic through popular areas a major problem for the ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects ...

Yellowstone National Park is extending the fishing season on three rivers in the park. That includes the Firehole River, ...

MAMMOTH HOT SPRINGS, Wyo. — Starting this year, Yellowstone National Park will extend the fishing season on three rivers in the park. The following waterways, located in the west side of the park, ...

If you don't get to see it, there are more than 500 active geysers located within Yellowstone National Park, including Old Faithful. Established in 1872, Yellowstone National Park was the world's ...

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