Ohio

The Great Serpent Mound is a 1,300-foot (396 m) long and 3-foot (91 cm) high prehistoric effigy mound located on a plateau of a crater along Ohio Brush Creek in Adams County, Ohio, and is the largest surviving prehistoric effigy mound in the world. Resembling an uncoiling serpent, the mound is steeped in mystery and controversy. Despite over a century of research, there is no conclusive evidence about what it represents, when it was built, and what its true purpose was, though various astronomical alignments suggest it may have functioned as a type of calendar. Can we discern its significance? The Unique Features and Historical Origins of the Serpent Mound The Serpent Mound conforms to the curve of the land