 On the north-west corner is a small niche holding a Tlaloc sculpture, God of water, very important in this area for corn planting, other products and salt collection were the main income sources of the area.On the north side of Basement 3, is a stairway leading down from the Tlaloc niche at site level, it is made from large basalt blocks, below is an external patio, surrounded by a wall.There are remains of a drainage system.