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Serpent Mound

Serpent Mound State Memorial

Serpent Mound is one of the few effigy mounds in Ohio. It is the largest and finest serpent effigy in the United States. The museum contains exhibits on the mound and the geology of the surrounding area, known as the Serpent Mound crypto explosion structure.

From the monument...

The Serpent Mound

The Serpent Mound was first described by Squire and Davis in "Ancient Monuments of
the Mississippi Valley" in 1848.

Saved from destruction in 1886
Frederick Ward Putnam, Professor of
American Archaeology and ethnology,
Harvard University.

The land included in the park was secured
by subscription obtained by ladies of
Boston in 1887, when it was deeded to the
Trustees of the Peabody Museum of
Harvard University, Cambridge, Mass,
exempted from taxation by the act of
legislation of Ohio in 1888.

Transferred by Harvard University May
1900, to Ohio State Archaeological and
Historical Society for Perpetual care.



Created over the original wall. The small mound at the left, behind the sign, is an Adena mound.


Serpent Mound has lunar, solar, planetary, and celestial alignments. It marks all the solstices and equinoxes by lunar or solar alignments or both. In 2005, a local research team observed a triple alignment during the Summer Solstice Sunset. The moonrise was in the opposite direction and Venus set in the same area as the sun, all happening in succession. Later that year, the Volunteer of Serpent Mound honored the Winter Solstice by placing over 900 luminary bags along the edge of the effigy, producing a holiday festive glow.

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In the News:

We would like to thank all the readers of the "County Living's" magazine for voting Serpent Mound as "The Best Historic site of Ohio" One can view the artcle in the June 2008 Issue. The park also got mentioned in anther article
- Adams County: The ‘Edge of Appalachia’

Learn more about Serpent Mound being on the nomination list to the World Heritage List!

- Our Mar. 7th blog

- People's Defender