The Powers Phase Project was a multiyear archaeological program undertaken in southeastern Missouri by the University of Michigan in the late 1960s and early 1970s. The project focused on the occupation of a large Pleistocene-age terrace in the Little Black River Lowland-a large expanse of lowlying land just east of the Ozark Highland-between roughly A. D. 1250 and A. D. 1400. The largest site in the region is Powers Fort-a palisaded mound center...