The evidence from the Late Prehispanic occupation of Block 3 suggests that a significant population increase occurred during this time in the upper Colca valley. The evidence from the Tiwanaku period and the Middle Horizon appear to show small settlements with an economy focused primarily on pastoralism. Despite the wide circulation of Chivay obsidian during this period, there is no evidence in Block 3 of outside contact during the Middle Horizon except for the Wari influence in the local Middle Horizon ceramic technology, as described by Malpass and de la Vera Cruz (1986) and by Wernke (2003). During the Late Intermediate Period, dramatic changes are notable in a variety of forms of archaeological evidence in a pattern that is consistent with that observed by Wernke in the main Colca valley. Some limited agricultural cultivation appears to have been practiced given the association of LIP ceramics with cultivated areas. Pukara construction and some types of chulpaburial monuments are further evidence of LIP period occupation.