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Marietta Earthworks

Marietta Earthworks Marietta Earthworks - Credit: Wikimedia Commons

The Marietta Earthworks is an archaeological site located at the confluence of the Muskingum and Ohio Rivers in Washington County, Ohio, United States. Most of this Hopewellian complex of earthworks is now covered by the modern city of Marietta. Archaeologists have dated the ceremonial site's construction to approximately 100 BCE to 500 CE. Read more on Wikipedia

Source: en.wikipedia.org