Monks Mound at Cahokia

Monks Mound at Cahokia in Collinsville, Illinois, is the largest pre-Columbian earthwork in the Americas, rising approximately 30 metres above the surround

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Monks Mound at Cahokia in Collinsville, Illinois, is the largest pre-Columbian earthwork in the Americas, rising approximately 30 metres above the surrounding floodplain and covering over 5.6 hectares at its base. Constructed in stages between 900 and 1100 CE, it contained more earth than the Great Pyramid of Giza and served as the platform for the paramount chief's residence.

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