Effigy mounds are ceremonial mounds in shapes of animals, built by American Indians who lived in this area. There are thousands of mounds near upper Mississipi river. ☞ Effigy Mounds National Monument Iowa is a very interesting historical site with good easy hiking trails and great views of the Mississippi. ☞ Wyalusing State Park is just across the river. Good camp site, more hiking trails and half a day canoe trail through the wetland in the triangle between the Mississippi and Wisconsin River. Good weekend spot for Chicagoans.
Lidar of Marching Bears Mound Group
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Effigy Mounds National Monument and Wyalusing State Park trail maps