Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

With 22 national parks and monuments to its name, Arizona boasts some of the most astonishing landscapes in the country, from the Grand Canyon to the towering buttes of Monument ...

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 ...

In the afternoon, while his crew set up camp for the night, Powell would often climb into the canyon to investigate. Much has been learned about the geology of the Grand Canyon and about the ...

After a two-year dry spell, Grand Canyon Caverns, one of the largest dry caverns in America, will be having a grand re-opening ribbon cutting at 10 a.m.

The Grand Canyon reminds us constantly that we are merely specks in the history of the earth and universe. When asked, I tell people the hardest thing about running the canyon is not the rapids ...

A variety of companies offer helicopter tours of the Grand ... Canyon. Once you land, you'll be served beverages (including sparkling wine) and light snacks. On the way back to the city, you ...

Beautiful small towns in Arizona like Wickenburg and Cave Creek ... in the Grand Canyon State. Arizona is full of free and cheap natural spaces to explore. From national parks to city-side hiking ...