The Pinson Mounds comprise a prehistoric Native American complex located in Madison County, Tennessee in the region that is known as the Eastern Woodlands. The complex, which includes 17 mounds, an earthen geometric enclosure, and numerous habitation areas, was most likely built during the Middle Woodland period. The complex is the largest group of Middle Woodland mounds in the United States. Sauls' Mound, at 72 feet, is the second-highest surviving mound in the United States.