A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River that runs through the national park.
Geologists studying driftwood and lake sediments found in Stanton's Cave — in Marble Canyon, which lies in the eastern part of the Grand Canyon — revealed a possible connection between the area and the famous impact site known as Meteor Crater (also called Barringer Crater) in northern Arizona.
