President Theodore Roosevelt made the area a game preserve in 1906 and created Grand Canyon National Monument in 1906, ...

Feb. 26 marks the 106th anniversary of Congress establishing the Grand Canyon as a national park, but park-goers are worried ...

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the ... was able to analyze images of the massive geological features using photos and elevation ...

A visit to the Grand Canyon is a true bucket list item for anyone on a US road trip. But Arizona isn't the only place where an ambitious explorer can find a Grand Canyon. NASA’s Lunar Reconnaissance ...

Selfie-related deaths continue to occur all over the world. These are ten of the most dangerous spots around the world to to take a selfie.

At the Grand Canyon, summer brings heavy traffic. This sequence of images—a time-lapse composite of 160 choppers on two different flight paths—covers an eight-hour period on July 9 ...

Grand Canyon National Park visitors are being warned about long entry lines after Trump administration layoffs hit Arizona’s ...

An East Valley high school football coach was arrested; the body of a California man was found at the Grand Canyon; and more – here's a look at some of our top stories for the morning of ...