Original sentence: Moorehead Circle was a double woodhenge constructed about two millennia ago at the Fort Ancient Earthworks in the U.Robert Riordan, the archaeologist investigating the site, estimates that about two hundred wooden posts were set in the outer circle.The use or uses of the circles has not been determined
Edited sentence: " Wright State University Laboratory of Anthropology: Fairborn, Ohio 2008."Report on the Excavations of the Moorehead Circle at Fort Ancient, 2007.Following the 2009 Field Season though, this estimate will likely be reevaluated given a huge number of tightly spaced post-molds found on the geographic south of the feature.Moorehead Circle was a triplewoodhenge constructed about two millennia ago at the Fort Ancient Earthworks in the U.Riordan, Robert.Robert Riordan, Proffessor of Archaeology at Wright State University and lead archaeologist investigating the site, estimates that about two hundred wooden posts were set in the outer circle.The use or uses of the circles has not been determined, although it is likely ceremonial.Thirty post-molds in all, were found in an eight meter long area excavated on the border of the circle