It’s never too early to plan your getaways for the coming year, and you’ll find a rich range of choices among Smithsonian ...

From Grand Canyon to Petrified Forest to Saguaro National Park, here are the best things to do in Arizona's most beautiful ...

Outdoor retailer REI has closed its Experiences business. Here's what that means for the campground it planned to open in ...

Grand Canyon National Park is one of the most iconic and magical landscapes in the United States. It’s not an overrated hole ...

Hidden beneath the East Coast of the United States lies the Chesapeake Bay impact crater, a colossal structure formed 35 ...

My friend Marilyn and I were now headed to the Grand Canyon. I had been before and was excited for her to see it.

“Leave it as it is,” declared U.S. President Teddy Roosevelt after a 1903 sojourn at the Grand Canyon. “You cannot improve on it. The ages have been at work on it, and man can only mar it.” ...

Large drilling sites, tailing piles and mines are often left open to ... water and into seeps and springs that are the lifeblood for animals in the arid Grand Canyon region. The Center for Biological ...

We’re on a cliff roughly 3,500 feet above the Colorado River at the tip of the Great Thumb Mesa, a spectacular formation that thrusts out from the South Rim of the Grand Canyon like the bow of ...