Those who've poked along the old, cross-country Route 66 through the American Southwest in Arizona might have accidentally driven by, or perhaps spotted, what looks like a giant, bowl-shaped hole in ...

Mysterious driftwood high in Grand Canyon caves hints at the legacy of Arizona’s huge impact crater.

WINSLOW, AZ (AZFamily) — An asteroid hit the Earth in what is now known as northern Arizona about 50,000 years ago. It left a giant crater that draws people from all over the world. Nestled between ...

A new study highlights the striking coincidence in the geologic ages of the famous Meteor Crater in Arizona and a landslide dam that blocked the Colorado River, forming a paleolake in the Grand Canyon ...