The Walls phase is an archaeological phase in southwestern Tennessee and northwestern Mississippi of the Late Mississippian culture. Chucalissa is a Walls phase mound and plaza complex located on a bluff overlooking the Mississippi River. Other contemporaneous groups in the area include the Parkin phase, Tipton phase, Menard phase, and the Nodena phase. The Walls phase is the last prehistoric people to inhabit the Memphis area before the arrival of Europeans.[1] During the early 1540s the Hernando de Soto Expedition passed through the area, stopping at many villages along the way. It is thought that the Walls phase may be the Province of Quizquiz, a Tunican people encountered by de Soto on the banks of the Mississippi River.[2]