Por: Rafael Vega Centeno, Pontificia Universidad Católica del Perú; Carlos Toledo, Universidad Antonio Ruiz de Montoya; Luis Huamán, Universidad Peruana Cayetano Heredia, y Grace Alexandrino, Stanford University*.AbstractWe present an analysis of a stratigraphic profile located in the southeastern zone of the Maranga archaeological complex (lower Rímac Valley). The evidence collected allows a precise chronological placement of the occupation in this sector between 620 and 780 AD. We also analyze the geomorphology associated with human occupation, including the alluvial events associated with its abandonment. Finally, we analyze a pollen column that suggests a semi-arid ecosystem altered by the Maranga settlement.* Latin American Antiquity 32(3), 2021, pp. 655–661. Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of the Society for American Archaeology. doi:10.1017/laq.2021.25