What is the name of the culture cultivated in the area of Duncan Farm and Golden Eagle?
Duncan Farm (Grafton, Illinois):  The site was part of the Hopewell exchange system in Illinois and is the closest neighboring village site to the Golden Eagle regional transaction center, a major trade and social hub in the system. Hopewell tradition: The Hopewell tradition (also called the Hopewell culture) describes the common aspects of the Native American culture that flourished along rivers in the northeastern and midwestern United States from 200 BC to 500 AD, in the Middle Woodland period.
i don't know