Bit by bit, development and sprawl are inexorably gnawing away at private lands crucial to wildlife in the Greater Yellowstone Ecosystem. Current trends are not encouraging, but nor are they ...

Thanks to public transit systems and private tours, you can experience these national parks without having to drive.

The Petrified Forest and Painted Desert are uniquely Arizona road trip destinations. Here's why it's worth the drive and what ...

If you ever have the chance to go to Yellowstone National Park, do so in order to see the geysers. Water seeps down into the ...

Researchers used lightning and solar storms to map magma, revealing isolated pockets as opposed to one bubble ready to burst.

No, Yellowstone isn’t erupting, but researchers now know where the next major eruption is most likely to take place ...

Johnson. Photograph by Krista Rossow, Nat Geo Image Collection In 1978, Congress nearly doubled the national park’s initial size with the addition of about 36,000 acres that had been logged.

Researchers from the United States Geological Survey (USGS) have been probing the subterranean monster lurking beneath America’s idyllic Yellowstone National ... Park. A map of the magma ...

But what happens if you approach the wildlife, especially when doing so is prohibited? If you're this woman, who recently visited Yellowstone National Park and tried to pet a bison, you'll get a stern ...

Teton Park Road, which is open from May 1 through October 31 annually, winds along the base of the Teton Range, offering visitors great views of the park's biggest peaks and access to trailheads ...

It's magical to witness the majestic alpenglow on Glacier National Park's mountain peaks as the sun rises. It's also your best chance to see wildlife before the road becomes too busy.