It is delimited by structures 1 (to the south), 2 (to the east) and 3 (to the north). There are two water collection systems, the sample of the talud-tablero and a circular construction, corresponding to one of four ovens identified, which dates from the Postclassic period.

Although both water collection systems are similar, one of them is more complete. It is composed of two long canals, which come out of structures 2 and 3, plus other short canals. Built with river stone and covered with slabs, they began in the springs that emerged in this area and led the water to a sedimentation box located in the center of the plaza, from which another channel led to a reservoir. In one of the canals there are two small boxes, one on each side, which were possibly filled with filtered water.

Structure 1