Since the 1970s, the Tucson Basin has been the focus of an increasing number of research and cultural resource management archaeological projects. A vast body of data has been accumulated relevant to the prehistoric environment and culture history of the basin. One research area that has received special attention in the last two decades is Hohokam settlement patterns. This study was designed to examine that issue, in addition to producing an overview of the cultural and environmental setting of the basin. The study area consists of a 5-kilometer-wide corridor along the Santa Cruz River between the towns of Marana and Continental. In order to provide the necessary background for the settlement pattern research, data first were compiled on the environmental setting of the basin, including geological, climatic, biotic, and hydrological aspects. The environmental overview that is provided in Chapter 2 is the first such study, of this scale, to be produced for the Tucson Basin. In conjunction with the environmental overview, a cultural overview was developed that encompasses the Paleo-Indian through Protohistoric periods. Current thoughts relevant to the Tucson Basin temporal sequence were synthesized to produce a chronology and culture history, which is presented in Chapter 3. The culture history is accompanied by a research history of Tucson Basin archaeology in Chapter 4, which classifies prior research into four major periods and discusses current research trends. The main body of the study, presented in Chapters 5 and 6, contains Hohokam site distribution and settlement pattern data, which are discussed in relationship to the environment and other relevant factors. The study area as a whole is examined in Chapter 5, whereas a subset of the data, consisting of southern Tucson Basin Hohokam sites, is discussed in Chapter 6. The study concludes with a comparative review of cultural-environmental studies that have been conducted on the Colorado Plateau. A settlement pattern model, known as the AnaAnzi adaptation model, that uses a dynamic disequilibrium approach to understanding settlement pattern change, is examined and its applicability to an analysis of Hohokam settlement patterns is discussed.

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