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

Yellowstone National Park is used to rule-breakers, but usually it's the tourists pushing their luck, not one of their own employees.

Summer at Yellowstone National Park usually means gridlocked traffic and booked-up lodges. A winter trip takes effort, but ...

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

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

Another wolf from Yellowstone National Park's famous Junction Butte Pack killed in Montana is being investigated as a ...

Yellowstone National Park now charges international visitors $135 for week-long passes while U.S. residents pay $35, ...

No one in their right mind would try to break up a fight between two moose. In case you were wondering, moose often battle with one another over territory or a potential mate, and though many would ...

Yellowstone National Park is calling for public feedback on three proposed plans to rebuild the North Entrance Road, the ...

A new peer-reviewed study reports that claims of a “world-leading” trophic cascade in Yellowstone National Park are not supported, citing problems with the methods used in earlier research. A newly pu ...