Editing Timber circle (section)

===Poverty Point===
[[Image:Circular structures at Poverty Point IMG 7433.JPG|250px|right|thumb|Concrete markers in the plaza area at Poverty Point]]
{{main|Poverty Point}}
The oldest known timber circles in North American archaeology were found at Poverty Point in 2009 by archaeologists from the [[University of Louisiana at Monroe]] and [[Mississippi State University]], led by Poverty Point station archaeologist Dr. Diana Greenlee. They discovered evidence in the {{convert|37.5|acre|ha}} plaza area for multiple wooden post circular structures ranging from {{convert|82|ft|m}} to {{convert|206|ft|m}} in diameter; built during the earliest habitation of the site circa 2400 BCE. The site now has a ring of concrete posts marking the position of one of the circles.<ref>{{cite book| title= The Archaeology of Events: Cultural Change and Continuity in the Pre-Columbian Southeast | page= 149| editor1= Gilmore, Zackary I. | editor2= O'Donoughue, Jason M. | publisher= [[University of Alabama Press]] | date= 2015| isbn= 978-0817318505}}</ref><ref>{{Cite web| title= Poverty Point : Plaza | url= https://www.crt.state.la.us/dataprojects/archaeology/povertypoint/plaza.html |publisher = Louisiana Division of Archaeology |access-date=2017-12-20 }}</ref><ref>{{Cite web| title= Poverty Point| author= Greenlee, Diana | url= http://www.knowlouisiana.org/entry/poverty-point-7 |publisher = Louisiana Endowment for the Humanities |access-date=2017-12-20 }}</ref>