This report offers a ceramic sequence for the late pre-Hispanic periods of the Moquegua Valley in southern Peru. The sequence is based on excavation and survey data from 17 sites in the Otora Valley, the northernmost tributary of the Osmore (Moquegua) Drainage. Five pre-Hispanic periods have been defined beginning at approximately A.D. 900 and continuing on to the Late Horizon (ca. 1475). The principal ceramic types for each phase are presented in this report Includes bibliographical references (p. 18-20) This report offers a ceramic sequence for the late pre-Hispanic periods of the Moquegua Valley in southern Peru. The sequence is based on excavation and survey data from 17 sites in the Otora Valley, the northernmost tributary of the Osmore (Moquegua) Drainage. Five pre-Hispanic periods have been defined beginning at approximately A.D. 900 and continuing on to the Late Horizon (ca. 1475). The principal ceramic types for each phase are presented in this report Fieldiana series has been published as Anthropological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Anthropology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-)