New research links the impact at Meteor Crater to a Grand Canyon landslide that may have created an ancient lake 56,000 years ...

A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists ...

Flood warnings have been issued for Kansas and Missouri as Tomahawk and Brush Creeks rise in water levels. This live blog is ...

The nearly century-old Grand Canyon Lodge in far northern Arizona was a refuge for ambitious hikers and adventurous tourists eager to bask in the magnificent views ...

Nearly 5 million people visited the Grand Canyon last year, from day trippers and campers to people sleeping overnight in ...

Irvin Fink Jr. recently returned from his second time hiking the Grand Canyon rim-to-rim. Fink (front right) is seen with his grandson, Levi Benjamin, 12 (front left), son-in-law Jo Benjamin (rear ...

The United States' first gay travel company began 52 years ago with the Grand Canyon as its destination.

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic wonder.

Visitors to backcountry areas of Grand Canyon National Park can now subscribe to a new emergency warning system that works in areas where cell phone signals are absent.

Grand Canyon Caverns and restaurant have opened after being closed for nearly 3 years. Here's why it closed and how to go into the Grand Canyon caves.