File:Octagon mound modern.jpeg: Revision history

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5 December 2022

  • curprev 20:5420:54, 5 December 2022Jb talk contribs 198 bytes +198 "Newark Earthworks: The Great Circle and the Octagon Earthworks" by Deb Platt in 'TrekOhio' (14 May 2012) https://trekohio.com/2012/05/14/the-largest-geometric-earthworks-in-the-world/