A critical transition period in the archaeology and history of Palestine-the Late Bronze Age and Early Iron Age-is described in detail from the perspective of a group of sites in the Baq'ah Valley. A major emphasis is on how scientific techniques, including magnetic location of undisturbed burial deposits and analytical reconstruction of very early industries, can be effectively integrated into an archaeological project. Contrary to traditional views, the evidence supports a relatively peaceful development within a single cultural tradition rather than the intrusion of a new people or segment of the existing population, by invasion, migration, or revolt.