found at the site. The following are major features at the Pinson Mounds site: Inner Complex Sauls' Mound (Mound 9), at the center of the complex. The mound was named after John Sauls, the owner of the property before its purchase by the state. Sauls' Mound is the second-highest prehistoric mound in the United States. The mound is rectangular in formation, with each corner aligned with one of the four cardinal directions. The mound's function was believed to be ceremonial. A viewing platform has been constructed atop the mound for park visitors. Dimensions: base— 112 x 91 meters, height— 22 meters. Mound 10, a few meters to the east of Sauls' Mound. Mound 10 is believed to have been a platform mound with a ceremonial function. Dimensions: base— 61 x 40 meters, height— 1.3 meters. Mound 11 Sector, a few meters to the north of Sauls' Mound, behind the museum. Mound 11 is a natural rise that is believed to have been a habitation area during the Middle Woodland period. Mound 12, several meters southwest of Sauls' Mound. Mound 12 was a burial mound built upon an Early Woodland habitation area. Dimensions: base— 23 x 17 meters, height— 1.3 meters. Mound 14 Sector, several meters southwest of Sauls' Mound. The Mound 14 Sector was a late-Woodland/early-Mississippian habitation area. Mound 15, several hundred meters southwest of Sauls' Mound. Part of Mound 15 has been destroyed by cultivation. Dimensions: base— 46 x 50 meters, height— appx. 1 meter. Mound 17, several hundred meters southeast of Sauls' Mound. Dimensions: appx. 12 meters long with a height of 1 meter. Eastern Section The Eastern Citadel, an earthen geometric enclosure located approximately east of Sauls' Mound. William Myer gave the enclosure its present name in the early 20th century, although archeologists believe its function to have been primarily ceremonial rather than defensive. The walls form a near-perfect semicircle with a diameter of , enclosing approximately . The height of the walls is, on average, approximately . The enclosed area is not level, with the western edge being approximately lower than the eastern edge. Mound 29, a rectangular platform mound located along the eastern edge of the geometric enclosure. Mound 29 is aligned with Sauls' Mound in the direction of the equinox sunrise. Dimensions: base— , height— . Mound 30, a bird-shaped mound a few meters south of Mound 29. The bird shape is thought to