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CERRO CACAñAN
The final group of qollqa is located on Cerro Cacañan at an elevation of 3,350 m (Figure 7-2). These are set in a single row on a terrace just below the brow of the hill and face east and southeast. There are 23 partially preserved qollqa and sufficient room at the southwest end of the terrace to have accommodated about 3 more. The qollqa vary somewhat in size but average about 5.0 x 3.5 m, separated by a space of 4 to 5 m. Largely due to failure of the soft sandstone fieldstones and poor quality mud mortar used, the walls are generally poorly preserved. The walls are about 50-55 cm thick, double-faced, with a rubble core.
About 300 m west of these qollqa there is a group of larger buildings. They vary in size but are about 18.0 x 6.5 m. Six of the buildings are arranged in a row on a terrace and are separated by 2.6 to 2.9 m. The other two are on a higher terrace with their long axes oriented perpendicular to the buildings below. Internal comers are often rounded, and there is one possible example of an external rounded corner. Of the four best preserved buildings on the lower terrace, two have single doors, and two probably have symmetrically placed double doors; doors occur in the downhill-facing wall and are 100 to 104 cm wide. The pirca walls are generally poorly preserved, constructed of angular fieldstone, and 50 to 70 cm thick.
In summary, we have surface indications of 144 qollqa but estimate that there may have been as many as 215. In many respects the structures conform to standard Inka storerooms: They are arranged in rows on hillslopes overlooking the main Inkaic center and have small trapezoidal doorways located high in the wall. On the other hand, the lack of circular and multiroomed rectangular qollqa and the very small size range is somewhat surprising because variation in shape and size are sometimes indicative of different storage functions (Morris 1981).
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