Meteor Strike May Have Triggered Massive Grand Canyon Landslide 56,000 Years Ago
A meteorite impact in northern Arizona may have caused a massive landslide in the Grand Canyon about 56,000 years ago, altering the course of the Colorado River and forming a now-vanished paleolake. Researchers found driftwood and lake sediments in Stanton’s Cave, which sits within Marble Canyon, joining a body of evidence that the river was…