July 28, 2026
This work presents the results of more than a decade of archaeological fieldwork at the Rooney Ranch site in Oro Valley, Arizona—an upland Hohokam village that played a key role in regional agave production. Edited by Jeffrey T. Jones and Helen L. O’Brien, Hohokam Along the Cañada del Oro: Specialized Land Use at the Rooney Ranch Site synthesizes extensive data collected by the Pima Community College Centre for Archaeological Field Training, offering a rare and richly detailed look at how small peripheral settlements contributed to the sustainability of larger Hohokam communities in the Sonoran Desert. Through GIS-based mapping and the analysis of ceramics, lithics, and faunal and botanical remains, the book reveals how specialized land use shaped the economic and social fabric of the region for centuries.
This legacy project stands out not only for its depth but also for its educational significance. As one of the few long-term, community-college-led excavations in the Southwest, the Rooney Ranch project highlights the vital role of student training and local collaboration in archaeological research. With more than seventy data-rich tables and contributions from leading specialists, this volume is an essential resource for archaeologists, historians, and anyone interested in Indigenous land use, desert adaptation, and the enduring legacy of the Hohokam in southern Arizona. Read an excerpt from the book’s chapter 3, Ceramics, below.
Pottery collected during excavation was assigned a lot and sequence number; these were correlated to provenience. When identified, partially reconstructible vessels, worked sherds, and miscellaneous ceramic artifacts were bagged separately. In the laboratory, sherds were sorted into gross categories—buff ware, decorated brown ware, plain ware, worked, and other (includes polychromes and surface manipulated pieces). Body sherds were separated from rim sherds. They were then counted and weighed by lot. Information including feature, lot, and sequence numbers; artifact category, and weight were recorded in a computerized database using Microsoft ACCESS® software.
Efforts were then made to reconstruct vessels. Larger vessels often included sherds from more than one lot. Once all of the sherds from one vessel had been located, they were sometimes, but not always, assigned a new lot number. Some reconstructed vessels thus may have more than one lot and sequence number.
In my analysis, I counted each reconstructed vessel as one, even if it came from more than one lot or sequence. Variables recorded for each whole or reconstructed vessel included type or ware, vessel shape, rim finish shape, tempering material, surface finish, vessel wall thickness, and percentage of vessel represented. Rim diameter was measured for vessels when 5 percent or more of the rim was available. Vessel heights and body diameters were also measured when possible and neck heights were measured on jars. I also made note of whether interior vessel walls were eroded.
Variables recorded during analysis of the rest of the ceramic collection were similar to those recorded for the reconstructed vessels. Sherds were sorted by size, type or ware, vessel part, and vessel shape. Seven hundred dime sized or smaller sherds were counted in regard to size but were not analyzed further. Additional information recorded on larger sherds included jar neck height, rim finish shape when applicable, rim diameter if 5 percent or more of the rim was found, surface finish, presence or absence of erosion on the sherd interior, and temper particles. Each of the variables recorded are described next. Details regarding analytic methods and results are reported in Appendix B.
The Rooney Ranch ceramics that were analyzed came primarily from pithouse floors; from intrusive features within houses, such as roasting pit Feature 4.01; from subfloor pits in houses; and from middens. The ceramics were used to determine depositional context and date ranges for each feature. The sizes and types of pots found in each feature reflected on activities within the features including possible closure rituals for houses and the use of middens as storage or ritual locations. The collection of worked sherds, clay figurines, and modeled spindle whorls also provide clues on activities such as fiber processing that may have occurred at the site. Pottery from other parts of the Tucson Basin and from outside of the Tucson Basin allow speculation as to how the villagers at the Rooney Ranch site interacted with others in the region.
Jeffrey T. Jones is a retired cultural resource management (CRM) archaeologist with over thirty-five years of experience in the American Southwest and northwest Mexico. His formal training is in archaeological field methods and cartography, and he has conducted field mapping and cartography for projects in Central America, Brazil, southern France, and Sudan. He last worked as a field/project director for Tierra Right of Way Services in Tucson. He has more than four hundred project reports on file at the Arizona State Museum, ranging from negative survey reports to major excavation reports.
Helen L. O’Brien is an archaeologist specializing in field mapping, data management, CAD, GIS, and student training. She has been employed at the Pima Community College Archaeology Centre since 1985. She has conducted field mapping, data collection and management, and cartography at sites in southern Arizona, Brazil, southern France, Hawai‘i, Egypt, and Sudan.