It is of one level with several rooms in parallel form, with three towers on a great platform with stairway. Its lower facade is divided with corner columns and with entrances to the chambers in each one. On the other hand, the upper façade is smooth and inclined, with a thin lower molding. The towers were crowned with a temple and the one in the center resembles a pyramid. The upper sanctuaries were profusely decorated with masks. The complex has been dated between 600 and 800 AD.