A new study suggests ancient wood floated into a cave far above the Colorado River when a meteorite-induced earthquake ...

Scientists find a link between Barringer Crater and Grand Canyon landslide. Research indicates both events occurred around 56 ...

The resulting Nankoweap landslide would have dumped enormous limestone boulders into the river corridor, creating a temporary ...

Two separate cases of zoonotic diseases, hantavirus and rabies, were confirmed at Grand Canyon National Park. A park employee ...

An upcoming episode of the PBS documentary series “Human Footprint” focuses on the Colorado River and premieres in Flagstaff ...

A wildfire that destroyed a historic Grand Canyon lodge is continuing to spread out of control after it had been allowed to ...

Grand Canyon National Park Superintendent Ed Keeble said the Grand Canyon Lodge, the only lodging at the North Rim, was ...

The Dragon Bravo Fire in Arizona has destroyed dozens of structures and a water treatment facility on the Grand Canyon's ...

Based on remarkably similar ages, the meteor impact that created one of Arizona's most recognizable landmarks and wood and sediments found in caves high up in the walls of the Grand Canyon, a new ...

A meteorite that struck near Winslow, Arizona, about 56,000 years ago may have triggered a massive landslide in the Grand ...

The satellite-based alert system is tailored for hikers and river-runners who are not in range of cell service.

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