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

A wildfire along the Grand Canyon’s North Rim grew rapidly over the weekend and destroyed a historic lodge and visitors ...

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

Cutting‑edge dating reveals driftwood high in Grand Canyon caves 55,250 years ago when a meteor’s shock wave blocked and ...

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

A historic lodge on the Grand Canyon's North Rim has been destroyed by a fast-moving wildfire, the park said Sunday.

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

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

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 ...