![Piles of clamshells (Schvin/CC BY 2.0), background: men in a Curragh, a skin boat (WilliamMurphy/CC BY-SA 2.0);Deriv.](https://members.ancient-origins.net/sites/default/files/Seafarers-and-Shell-Rings.jpg)
![Piles of clamshells (Schvin/CC BY 2.0), background: men in a Curragh, a skin boat (WilliamMurphy/CC BY-SA 2.0);Deriv.](https://members.ancient-origins.net/sites/default/files/styles/article_category/public/Seafarers-and-Shell-Rings.jpg?itok=fgA__2RR)
Seafarers and Shell Rings: Strange Formations on the American Coast a Hallmark of Faraway Visitors?
Just south of Awendaw, South Carolina, in the Francis Marion National Forest, is an example of a type of architectural artifact that still baffles archaeologists. For every explanation someone offers up, there are many more that refute it. ...
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