My research focus is on the development, testing, and utilization of a Geographic Information Systems based predictive model of prehistoric site location and settlement for the Shivwits Plateau in northwestern Arizona. This research may help to better understand settlement patterns and land use across the region from the Archaic to Protohistoric period. The GIS data collected are used to determine site location probability for specific temporal phases of Virgin Anasazi cultural activity. My research examines two research questions. First, is it possible to reliably predict site locations on a given landscape? Second, what can this information tell us? Utilizing model and comparative research settlement, subsistence strategies, and settlement/subsistence differences and similarities between the Kayenta, Virgin Anasazi, and the Southern Paiute are explored.