Third stage This stage continued with development of buildings, whose material from previous constructions was reutilized; this included column blocks and Metates. Limestone walls are associated with the Mezcala culture style, By around 300 CE, the decline and abandonment of Cuetlajuchitlán had occurred. Site description The site has a complex architectural distribution, with stone slab streets, large platforms, open spaces, and others that functioned as rooms, warehouses, or possibly, as workshops where specialized activities were performed. From the architectural design, it may be inferred that elite groups lived here; they controlled communal activities and performed public and ceremonial activities. The site has several function places, these include two ceremonial enclosures and three residential housing complexes, it is believed that they were occupied by high-ranking people and craftsmen. The most important Cuetlajuchitlán buildings, in the two explored complexes are: Ceremonial Enclosure 1 This is the main structure of the site, it is rectangular and measures 28 m, north–south and 18 m east-west. Its large platform, sunken patio, and walls, were built with limestone blocks; two pink tubs carved from a single block were found here, probably used for ritual baths. These baths have a seat on the western side, with an external design resembling an eyebrow, similar to the constructive style of the area. Close to the main platform is a Temazcal or ancient steam bath. Ceremonial Enclosure 2 Situated next to ceremonial enclosure 1, at the southeast end with an enclosed small space, are two tubs that probably were used before the enclosure construction. As evidence, its construction materials were reutilized in an area used for rectangular and circular pink stone block carving and storage, and later used for building construction. Structures Residential housing complex These were places inhabited by the local elites, located in the northern, southern and western slopes of the hill. Features include the street continuation on axes distributed around well-defined platforms; pink limestone rooms were built with sunken patios and their respective drainage system, water tanks, and small storage areas. Complex 8 Located some 200 meters outside the area previously explored, it is a vast complex consisting of a square surrounded by platforms with housing units, which in turn, had their respective water tanks and a water channel. The center has a great platform where probably the house of an elite person was placed, perhaps the person who ruled Cuetlajuchitlán at that time. Storage areas In