Archaic Native Americans built massive Louisiana mound in less than 90 days

Wednesday, January 30, 2013 - 19:31 in Paleontology & Archaeology

A massive earthen mound constructed about 3,200 years ago by Native Americans in northeastern Louisiana was built in less than 90 days, and perhaps as quickly as 30 days, according to new research. The site was recently nominated for a place on the UNESCO list of Word Heritage sites.

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