Located more than 200 feet below the surface near Peach Springs, the Grand Canyon Caverns and Inn offers visitors a rare ...

The Great Canyon isn't just iconic, it's also historic. This trail has been used for many generations, connecting the ...

A remarkable coincidence occurred 56,000 years ago, when the impact that created Meteor Crater triggered both a landslide-dammed lake and a paleolake formation in the Grand Canyon. Earth’s ancient ...

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

Mystic Aquarium “will lead an interdisciplinary team of scientists on an oceanographic research expedition to study vibrant marine life, biodiversity, and the changing ocean environment within the ...

President Donald Trump, in a July 3 executive order, signaled higher fees for foreign tourists visiting the Grand Canyon and other national parks.

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 ...

To behold the Grand Canyon from above, visitors usually book a helicopter tour or ride a zip line. But at the west rim of the canyon, there’s a third (and equally adrenaline-inducing) option ...

An unusually high number of hikers had to be rescued by helicopter on the Grand Canyon, and a construction site is to blame.

Thousands of hikers take on the Grand Canyon’s Rim-to-Rim trek every summer. This year, however, a major trail closure has some experts raising serious safety concerns.