Serpent Mound

"The Great Serpent Mound is a 1,348-foot (411 m)-long, three-foot-high prehistoric effigy mound on a plateau of the Serpent Mound crater along Ohio Brush Creek in Adams County, Ohio. Maintained within a park by the Ohio Historical Society, it has been designated a National Historic Landmark by the United States Department of Interior. The Serpent Mound of Ohio was first reported from surveys by Ephraim Squire and Edwin Davis in their historic volume Ancient Monuments of the Mississippi Valley, published in 1848 by the newly founded Smithsonian Museum."

• Text from Wikipedia entry for "Serpent Mound" (accessed 10/19/2015)
• Image source

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Blog Posts and Articles

• "Review of America Unearthed S02E09 "Mystery of the Serpents"" (Jason Colavito, 1/26/2014)
• "Menorahs, Earthworks, & Towers: Fact-Free Claims about Ancient America" (Jason Colavito, 5/8/2012)
• "Serpent Mound and the Crystal Skulls" (Brad Lepper, 11/12/2011)
• "Pseudoscience and the Serpent Mound" (Hot Cup of Joe, 7/30/2008)