What could possibly link a collision in space on the Arizona desert to a landslide that irreversibly altered the face of the ...

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 ...

Built nearly 100 years ago, the remote lodge offered majestic views of one of our finest national parks before it burned in ...

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

Brandon Proffitt and Logan Henning were part of a team from Colorado that set up a highline between pinnacles near the summit ...

The Grand Canyon is vast, covering 1,218,375 acres and 1,904 square miles across Arizona. Here's what to know.

President Donald Trump signed an executive order July 3 directing National Park entry fees be increased for foreigners.

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 National Park has launched a satellite-based emergency alert system, which allows visitors to receive real-time alerts about flash flooding and other hazardous events in cell service ...

An extreme heat warning has been issued for parts of Arizona, including the Grand Canyon, on Monday.