Golden Eagle-Toppmeyer Site, Archaeological site in Calhoun County, United States.
The Golden Eagle-Toppmeyer Site contains two primary sections: a geometric earthwork formation and an adjacent habitation area along the Illinois River.
Dating from 150 BC to 450 AD, this Middle Woodland period site functioned as a regional center for trade among Havana Hopewell communities.
The site includes two significant mounds integrated within a rounded earthwork structure, representing advanced engineering skills of pre-Columbian societies.
Located near the intersection of Quarry Road and Illinois River Road, the 45-acre archaeological complex remains accessible for research purposes.
This location stands as the sole geometric earthwork from the Middle Woodland period discovered in the central Mississippi River valley.
Location: Calhoun County
GPS coordinates: 38.91530,-90.52030
Latest update: March 3, 2025 23:54
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