[fidelis]

“Professor Casana describes the circular feature as a “council circle,” which were centers of tribal communities in North America, believed to have associations with astronomy, but they also served as ceremonial, political, and defensive structures.”

What evidence do they have of all this besides the fact that it is a circle? It could also be any number of innocuous and less interesting things. Not saying that it isn't a tribal circle, but where's the beef?

[Starboard]

Please see my #12 that’s related to your comment.

[Rockingham]

Other, well-researched and excavated native sites set the pattern.