Sunaj Pata is located above the modern town of Santa Rosa, near the boundary between the communities of Santa Rosa and San José. The entire site lies within San José, however. The sherd scatter - which is very dense - covers 5.0 ha. Very little modern material is present, and there is little modern disturbance apart from agricultural activities.
The site has two features which might be large artificial terraces, like those at Chiripa, Chiaramaya and Yanapata. They are not sufficiently well-preserved to permit a positive identification, however. Additionally, a large rectangular stain of ash, charcoal and burnt earth is present in the northern portion of the site in a plowed field. Its dimensions (approximately 20x20 m) and shape would suggest that it might be a sunken enclosure, similar to the Llusco structure at Chiripa (see [Paz Soría 1999]). Again, this must be confirmed by excavation. Some monumental construction at the site would seem to be suggested by the presence of numerous large, worked blocks of non-local limestone in rockpiles resulting from field-clearing in the northern part of the site.
Sector A extends over 1.25 ha and has a population index value of 56, similar in size to sector A at Yanapata.