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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British Dictionary definitions for cahokia mounds
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 2012 Digital Edition
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