Why and when human societies shifted from nomadic hunting and gathering to settled agriculture engages the interest of scholars around the world. One of the most fruitful areas in which to study this issue is the North American Southwest, where Late Archaic inhabitants of the Sonoran and Chihuahuan Deserts of Mexico, Arizona, and New Mexico turned to farming while their counterparts in Trans-Pecos and South Texas continued to forage. By investigating the environmental, biological, and cultural factors that led to these differing patterns of development, we can identify some of the necessary conditions for the rise of agriculture and the corresponding evolution of village life. The twelve papers in this volume synthesize previous and ongoing research and offer new theoretical models to provide the most up-to-date picture of life during the Late Archaic (from 3,000 to 1,500 years ago) across the entire North American Borderlands. Some of the papers focus on specific research topics such as stone tool technology and mobility patterns. Others study the development of agriculture across whole regions within the Borderlands. The two concluding papers trace pan-regional patterns in the adoption of farming and also link them to the growth of agriculture in other parts of the world.

In this new volume, the results of Rex E. Gerald’s 1957 excavations at the Davis Ranch Site in southeastern Arizona’s San Pedro River Valley are reported in their entirety for the first time. Annotations to Gerald’s original manuscript in the archives of the Amerind Museum and newly written material place Gerald’s work in the context of what is currently known regarding the late thirteenth-century Kayenta diaspora and the relationship between Kayenta immigrants and the Salado phenomenon. Data presented by Gerald and other contributors identify the site as having been inhabited by people from the Kayenta region of northeastern Arizona and southeastern Utah. The results of Gerald’s excavations and Archaeology Southwest’s San Pedro Preservation Project (1990–2001) indicate that the people of the Davis Ranch Site were part of a network of dispersed immigrant enclaves responsible for the origin and spread of Roosevelt Red Ware pottery, the key material marker of the Salado phenomenon. A companion volume to Charles Di Peso’s 1958 publication on the nearby Reeve Ruin, archaeologists working in the U.S. Southwest and other researchers interested in ancient population movements and their consequences will consider this work an essential case study.

Winner of the Society for Economic Botany's Klinger Book Award, this is the first complete ethnobotany of the Gila River Pima, presented from the perspective of the Pimas themselves.