Serpent Mound (also known as Great Serpent Mound) is an archaeological and historic site in Peebles, Ohio, USA, enclosing an effigy mound 1348 feet (411 m) long in the shape of a serpent, the largest effigy mound of a serpent in the world, built between c. https://www.worldhistory.org/Serpent_Mound/ #History #Adenaculture #FortAncientCulture #SerpentMound