 Stairs on the south side of the structure lead down to a vaulted tomb that was looted in ancient times and was probably that of Yax Pasaj Chan Yopaat.It was apparently plundered soon after the collapse of the Copán kingdom.Unusually for Copán, the summit shrine had four sculpted panels depicting the king performing war dances with spear and shield, emphasizing the rising tensions as the dynasty came to its end.