The Cahokia Woodhenge was a series of large timber circles located roughly 850 metres (2,790 ft) to the west of Monks Mound at the Cahokia archaeological site. Woodhenge III had 48 posts and was 410 ...

“So it’s pushed Woodhenge back to a similar period. This shows that actually it’s a much more complicated picture.” Noting that both monuments were aligned with the solstices, she said of ...