Cahokia Mounds

Cahokia Mounds

noun
a group of very large prehistoric Indian earthworks in southwestern Illinois, consisting of mounds with flat tops that supported temples and other structures of mud and thatch.
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Cahokia Mounds (kəˈhəʊkɪə)
 
pl n
the largest group of prehistoric Indian earthworks in the US, located northeast of East St Louis

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

cahokia mounds

archaeological site occupying some 5 square miles (13 square km) on the Mississippi River floodplain opposite St. Louis, Missouri, near Cahokia and Collinsville, southwestern Illinois, U.S. The site originally consisted of about 120 mounds spread over 6 square miles (16 square km), but some of the mounds and other ancient features have been destroyed. Some 70 mounds are preserved in Cahokia Mounds State Historic Site. Established in 1979 and encompassing 3.4 square miles (8.9 square km), it was designated a UNESCO World Heritage site in 1982.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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