Why did Indians stop making mounds?
Sometime between 900 and 1000 years ago, the people who built effigy mounds ceased to do so. The reasons for this are uncertain, but may have been related to changes in the way people perceived their place in society. Mounds in general, however, continued to be made and used regularly until the mid 1600s, when Indian societies were severely disrupted by the impacts of the fur trade and the migrations of displaced Indian peoples from the east. In a return to traditional ways, there are some modern examples of mound building among Indian people of the Upper Midwest as a symbol of continuity between the past and the present.
