Historical Marker
Broadway Bridge
Historical marker location:
Lebanon, Ohio
( Marker is at the intersection of Broadway (Ohio Route 48) and Cincinnati Avenue (U.S. 42), on the right when traveling south on Broadway.)
Marker installed: 2008
The Great Serpent Mound, located in Adams County, Ohio, is a prehistoric effigy mound in the shape of a serpent that is more than 1,300 feet long. It is one of the largest effigy mounds in the world and is estimated to have been built by the Adena culture more than 1,000 years ago.