The archaeological site was maintained by Harvard University’s Peabody Museum of Ethnography and Anthropology, under the direction of Frederic Ward Putnam, in the late 1800s – before control was turned over to the Ohio Historical Society. The Great Serpent Mound has been designated a National Historic Landmark by the United States Department of Interior.
The mound resembles a coiled serpent in map view and was first described by amateur archaeologists Ephraim Squire and Edwin Davis in the 1840’s. The effigy mound features in their landmark study ‘Ancient Monuments of the Mississippi Valley’ published by the Smithsonian Institution in 1848. Radiocarbon dating has established the age of Serpent Mound as 1070 AD.
Serpent Mound, one of the most noted effigy mounds in North America, is located on State Route 73 near Locust Grove, Adams County, Ohio. The earthwork winds along a ridgetop for about a quarter mile.
Serpent Mound, 3850 State Route 73, Peebles, OH 45660, USA
Latitude = 39.0226179
Longitude = -83.4319782