The Great Serpent Mound, coiled gracefully across the landscape of Adams County, Ohio, is one of the most enigmatic and awe-inspiring prehistoric effigies in North America. This ancient earthwork ...

The Great Serpent Mound in Ohio has long been a source of mystery. Some believe it’s an ancient astronomical marker, aligned with the movements of the sun and moon. Could this massive earthwork ...

CC0 Usage Conditions ApplyClick for more information. Identification of specific item; Date (if known); Major Dache M. Reeves photographs of Ohio Mounds, image #, NMAI.AC.154; National Museum of the ...

Ancestors of American Indians built numerous effigy mounds over several centuries beginning about 1200 AD. The largest number of these are in Wisconsin and Minnesota but Ohio’s Serpent Mound is ...