Effigy Mounds National Monument

Effigy Mounds National Monument preserves three prehistoric sites in Allamakee County and Clayton County, Iowa in the midwestern United States. The North Unit (67 mounds) and South Unit (29 mounds) are located where the counties meet along the Mississippi River. They are contiguous and easily accessible. The Sny Magill Unit (112 mounds) is approximately 11 miles (18 km) south of the other units, and offers no visitor facilities. It forms the heart of a cluster of interrelated protected areas. It is adjacent to the Upper Mississippi River National Wildlife and Fish Refuge, the Driftless Area National Wildlife Refuge, the Yellow River State Forest, and a short distance to the south, Pikes Peak State Park. There are also a number of...