In this volume, Robert D. Drennan presents results of two seasons of archaeological research on the Palo Blanco Project in the Tehuacán Valley of Mexico. He reports on the surface survey and excavations at the central plaza and surrounding areas, including the outlying barrios.

In the early 1970s, Robert D. Drennan excavated the Middle Formative archaeological site Fábrica San José in the Valley of Oaxaca, Mexico. In this volume he presents the results of the excavations and provides a chronology of Middle Formative ceramics. Appendix on carbonized plant remains by Richard I. Ford.

In this volume, editor Robert D. Drennan presents a series of reports on archaeological research in the Tehuacán Valley of Mexico. Charles S. Spencer writes about irrigation in the Formative period; Elsa M. Redmond reports on a Terminal Formative ceramic workshop; John R. Alden writes about a survey at Quachilco; Drennan provides a preliminary report on excavations at Cuayucatepec; Spencer and Redmond report on Formative and Classic developments in the Cuicatlan Cañada; and Judith E. Smith provides an analysis of carbonized botanical remains from Quachilco, Cuayucatepec, and La Coyotera.

In this volume, Robert D. Drennan presents a preliminary report on his survey and excavation in the mountainous area of western Colombia in 1984. Regional Archaeology in the Valle de la Plata contains a thorough description of the region’s landscape, including geology, soils, and modern flora, as well as details and illustrations of ceramic artifacts.