Credit for all photos and Newark Earthworks video folder: Ohio History Connection

Credit/source Octagon Earthworks Only video folder: TourismOhio

Photo captions:

Aerial-Octagon-No-Date: This aerial view shows the entirety of the Octagon Earthworks and Moundbuilders Country Club golf course in Newark.

Octagon-Closeup-No-Date: The Octagon Earthworks is at 125 N. 33rd St. in Newark.

Octagon-Morning-No-Date: The Octagon Earthworks is at 125 N. 33rd St. in Newark.

Rendering-Octagon-Moonrise: This rendering illustrates how the Octagon Earthworks in Newark tracks a complicated 18.6-year lunar cycle. Courtesy of the University of Cincinnati Center for the Electronic Reconstruction of Historical & Archaeological Sites.