Chaco Canyon and Mesa Verde are arguably the two best-known archaeological areas in the American Southwest. Yet despite more than a century of archaeological research, many questions remain unanswered.From more than fifty years of research, archaeologist Jonathan E. Reyman has uncovered a wealth of materials from the work of George Pepper and Richard Wetherill, mostly from the 1896-1901 Hyde Exploring Expedition at Chaco Canyon but also from later field and collections research at more than twenty institutions in the United States. Previously unpublished Pepper-Wetherill field notes, photographs, and drawings combined with newly commissioned drawings offer a significant revision to what we know about the Chacoan world.Pueblo Bonito and Chaco Canyon Revisited offers a blueprint for future research among existing archaeological collections.