Two localities warrant special attention because they are unique in function and meaning to this study and the project area, and because they do not sufficiently fit into the chronological phase schemes presented in previous chapters. The first site, which has been referenced several times in published articles and this book, is Cementerio de Nanchoc (CA-09–04) that dates from the late Las Pircas phase to the end of the Tierra Blanca phase and is located in an isolated place on the north side of the Nanchoc Valley. It is the largest and most elaborate mound and public site of the middle Preceramic period in the area and is associated with the specialized activity of producing lime, probably in a ritual setting. This site was built and utilized by residents who likely lived directly across the valley. The second site is Cerro Guitarra (PV-19–54), a domestic village and perhaps ritual locale that dates to the terminal Preceramic and aceramic periods. It is the only village site recorded in the two valleys under study (a possible exception is site JE-734 in the Jequetepeque Valley but this has not yet been confirmed by excavation). Although Cerro Guitarra dates to the end of the Tierra Blanca phase, its architecture, lithic technology, and site plan do not fit within the cultural scheme of this phase and thus merit a separate discussion.