Just north of us in Adams County, Ohio, is the 1,330 foot long, three foot high prehistoric effigy mound located on a plateau, known as Serpent Mound. Conforming to the curve of the hill on which it rests with its head near the point, the serpent winds back and forth for seven hundred feet and ends with a triple coiled tail. The neck is stretched out in a gentle curve, ending with open jaws around the end of a one hundred sixty foot oval, thought variously to be either an egg, the sun or the body of a frog. It is the largest effigy earthwork in the world. Archaeologists still debate over who built it, when, and why.