The world’s largest extant snake effigy runs for roughly a quarter-mile near what is now the southern border of Ohio.
Creators: Indigenous peoples of North America
Date of Creation: Approximately 0 – 100 CE.
Place of origin: What is now Adams County in southern Ohio in the United States of America.
Physical measurements: Approximately 1,348 feet long, 3 – 4 feet high
Materials: Rock and soil
Process by which it was made: Heaping and packing earth
Current location: Serpent Mound State Memorial, managed by the Ohio History Connection (formerly the Ohio Historical Society).

Information contributed by Chadwick Allen.
