Monks Mound covered in snow, Cahokia Mounds Museum.
Cahokia Mounds Museum slide series VPCMB-4.
Image courtesy of Cahokia Mounds Museum Society & Art Grossman Photos.
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Monks Mound covered in snow, Cahokia Mounds Museum.
Cahokia Mounds Museum slide series VPCMB-4.
Image courtesy of Cahokia Mounds Museum Society & Art Grossman Photos.