in prehispanic Perú: ritual, defense, and communities at the Fortress of Acaray, Huaura Valley. PhD dissertation, Department of Anthropology, University of Illinois at Urbana-Champaign, Urbana-Champaign. Brown Vega, M., 2009. Conflict in the early horizon and late intermediate period: new dates from the fortress of Acaray, Huaura valley, Perú. Current Anthropology 50 (2), 255–266. External links Forts in Peru History of Peru Former populated places in Peru Archaeological sites in Lima Region Archaeological sites in Peru 1st-millennium BC establishments in Peru 2nd-millennium disestablishments in Peru 1962 archaeological discoveries Norte Chico civilization