The Acropolis is a palace complex laid out around six small plazas, which it completely encloses, and forms the north side of the Main Plaza. It is a massive architectural complex covering an area of more than and is likely to have been the palace of the royal family. Two structures lying immediately to the south of the central plaza within the complex itself measure as high as and respectively. Investigations at the northern extreme of the Acropolis uncovered a piece of a plate dated to the Terminal Classic period. Excavations in the northwestern portion of the Acropolis have revealed a series of stucco floors and large amounts of ceramic remains, as well as fragments of worked stone, obsidian, bone and shell. Among the artefacts recovered were three polychrome vessels, two tripod vessels, a flute and a drum. Ceramic remains dated to the Late Classic have been found in all levels of the Acropolis. One of the ceramic vessels excavated from the acropolis was in a style associated with Tikal. Investigations behind the west structure of the northwest plaza in the Acropolis recovered fill that included ceramic fragments dating as far back as the Late Preclassic and Early Classic.