Those hills may not actually be hills! The crescent-shaped ridge of hills that rise up to 300 feet above the surrounding river plains in central Alabama are known as the Wetumpka Impact Crater. Though it has been overgrown and eroded after millions of years, the nearly five-mile wide crater is the result of an ancient cosmic collision. This site in Wetumpka, Alabama, is the scar resulting from a 1,250-foot (380-meter) cosmic object crash-landing on Earth some 83 million years ago. When the object—believed to be a comet or large asteroid—hit the…
