Alto Pukara continued to be occupied into the Late Chiripa phase. Sector B grew to 3.25 ha (population index: 171), at an annual rate of 0.09%. This is comparable to the phase average. It was probably in this phase that the site's terrace/platform was constructed. This feature is visible on Figure 6.5 as a rectangular feature on the southern (upper) portion of the site. Robin Beck's work at this site will hopefully shed some light on its architectural sequence.