Army veteran Kevin Bittenbender and Marine veteran Kirstie Ennis look to set a world record with a 47.5-mile ...

The Trump administration also announced plans to terminate nearly three dozen National Park Service leases in the next two ...

There's a valley hidden within the majestic Grand Canyon that can fill your day with zip-lining thrills and scenic views you ...

The Grand Canyon is one of those things that you have to see in person to really get a feel for just how grand it really is.

Two Arizona national parks were named among the best parks for seeing wildlife like mountain lions, bison and birds. Here's where to go to see animals.