We present a revised chronology for the Kolomoki site (9ER1) in Georgia, occupied primarily during the Middle and Late Woodland periods (ca. 200 BC to AD 1050). The considerable extent of the site has been noted for more than a century but came into sharper focus with the archaeological investigations by Sears (1956) and Pluckhahn (2003). The site includes at least nine mounds, a large central plaza, and a discontinuous habitation area nearly a kilometer in diameter. Previous interpretations assumed gradual and incremental changes in the community plan. We present a greatly revised chronology, based on new investigations in some of the lesser-known portions of the site and a doubling of the number of absolute dates. Bayesian modeling of these and previous dates reveals that, far from the gradualist assumption of previous work, the community at Kolomoki was dynamically transformed several times in its history, reaching its greatest spatial extent and formal complexity in two relatively short-lived phases. In these intervals, the village incorporated permanent residents and visitors into a single community in which daily face-to-face interactions were minimized even as communal identity was celebrated.