While single-component sites are rare in Block 2, most sites conform to a distributed pastoralist settlement pattern, spatial patterning is evident in the distribution of a brushed, unslipped type of pottery in neckless olla forms in Block 2. This pottery type bears resemblance to the Chiquero type proposed for the Formative Period in the main Colca valley by Wernke(2003). However, as will be discussed further, test excavations found pottery with similar characteristics in contexts dated to the 1313±36 B.P. (AA56939; A.D. 650 - 780) in the Block 3 area, suggesting that this pottery style continued to be used in the highland areas. Nevertheless, as shown inFigure 6-57, pastoral sites with wiped and unslipped olla sherds were found in two relatively discrete clusters in the Block 2 survey area. These sherds were found in a large cluster on the north end of the survey, and then none from A03-340 south to A03-442, and a small cluster is found in the southern most group of sites in Block 2. In other words, in the center of the survey was a zone where these pots were not encountered. The spatial patterns associated with the presence of unslipped, unpainted ceramics should not be over-interpreted because undecorated ceramics were not an artifact type that was rigorously sampled in this survey work. Furthermore, a number of small, a-ceramic sites were encountered that had pastoral attributes, such as small corral areas and relatively good access to water, yet no ceramics of any kind were evident. It is difficult to establish the antiquity of such sites, but it is possible they date to earlier stages of the agropastoral economy when ceramics use was .

It is worth noting that there was a strong association observed between high-density lithic loci predominant in obsidian raw material, and sites with this wiped, unslipped pottery type. Of the 22 high density lithic loci, 19 of them (86%) fell in sites that also had the unslipped, possible Formative (Chiquero) pottery in question. Among medium density scatters the pattern was less dominant. Of the 23 medium density lithic loci, 14 (60%) were found in sites with the unslipped pottery. While sites and surface artifacts are highly commingled in this area, these patterns suggest that obsidian production was associated with the pastoralists who made use of the wiped, unslipped olla design. Due to the limited sampling of unslipped ceramics, the associations between this pottery type and obsidian reduction are not certain.