Based on the analysis of the architectural areas and artifact surface collections, and aided by systematic auger perforations, we identified the areas with the most informative potential. With the purpose of capturing the range of activities in the Inka centers of Oroncota and Cuzcotuyo, a sample of each architectural area in each Inka center was excavated. Primary in situ contexts (middens, storage pits, cooking areas, offerings, and occupational floors) were exposed in large areas, until the sterile soil was reached. This facilitated documenting the entire cultural sequence of each main installation. Following standard procedures, excavation units of 2 x 2 m (4 m2) were dug over large areas. This facilitated the exposure of broader cultural features and activity areas. At least fifteen test units in each Inka installation were exposed (60 m2). This made a total of 120 m2 of excavations in both installations. The resulting data facilitated the understanding of the origins and evolution of each Inka center, and provided unique information on the cultural history and regional population dynamics.