It has seven columns, a bench running along the inner walls, and a throne or altar in the middle of the room. The chambers along the side were used to deposit six burials, along with offerings of small Obsidian knives, clay incense burners and small stone stelae sculpted with different figures. The building has two cosntruction periods of which the oldest, corresponding to the Terminal Classic period (1000-1200 a.d.) was partially covered by the later one, dating from the Post Classic period (1200-1650 a.d.).