Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: NASA/MSSS/Caltech/ CTX topography: NASA/MSSS/USGS HiRISE: NASA/U.Arizona/USGS/Amaz ...

Catherine Parker One of the trails that leads to the Colorado River, this steep path starts just west of the Bright Angel Lodge in Grand Canyon Village's Historic District (the park's blue shuttle ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

While a visit to the Grand Canyon is mesmerizing and worthwhile, it's not necessarily easy. We consider the closest and most ...

With beautiful views and a short and sweet route, this might just be the most romantic hiking trail in Louisiana.

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

What would national parks be without rangers and other National Park Service staff? Certainly not the same parks you love to ...

From the national parks of the Rocky Mountains to the music history of Nashville, these American adventures are calling ...

Zion National Park to Grand Canyon road trip guide • Discover the best route, scenic stops, travel tips, and must-see ...

compared to the big famous parks like the Grand Canyon (5.5 million visitors). The unpretentious visitor center hangs over the wall of the canyon and large windows provide a great view. Behind the ...

Located a few miles southeast of Flagstaff, Canyon Vista Campground boasts views of the San Francisco Peaks as well as access to several hiking routes, bike trails, and a famed local climbing area ...