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

A new study suggests a meteor strike that created Arizona’s Meteor Crater 56,000 years ago may have triggered a massive ...

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

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico ...

The result is a gap in the sedimentary record which occurs when the age of rocks changes sharply due to the erosion of previous rock, which is then replaced by younger rock. The phenomenon was ...

Rim-to-rim Grand Canyon trails take hikers over a variety of terrain, from rocks and dirt to grass and pinyon trees, all with a varying elevation — starting at about 7,000 feet on the south rim ...

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

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.