Yellowstone and Grand Teton’s Best Nature Walks by Roddy Scheer guides you through simple hikes that feature the best of the parks' rich ecology.

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

Two gargantuan canyons on the moon were carved by a hailstorm of rocks — and that’s good news for future lunar astronauts.

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

Planning your next adventure to a “national park”? Hold that thought. Because, spoiler alert, not every picture-perfect ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

Steve Camden of Columbus captured this view of the river flowing through the Grand Canyon of the Yellowstone. Nobody covers ...

The road trip focuses on the best options along the fastest path from Minneapolis to Yellowstone. This takes drivers from ...

There are alot of great caves in the US but there is a hot debate over which one is better Mammoth Cave or Carlsbad Caverns.

Over the next two weeks—hiking through fields of blooming lupines; curling up in our cabin, lost in the quiet harmony of ...

It’s no secret that Yellowstone National Park can be jampacked in the summer, when up to 1 million people jockey for space ...