Each of the circles that make up this great archaeological site , has a central altar , which consists of several concentric circular platforms; in turn , the altar is surrounded by a courtyard where dances were held in circles and around the yard , there are several adjacent platforms built to uniform distances from each other , in which the temples were located.
The main buildings of the Guachimontones , found the circle 2 or " La Iguana" , which is the most conserved within the enclosure. Its base, including side platforms , measures about 115 meters in diameter. The altar in the center measures 38.5 meters in diameter and 10 feet high ; which is formed by a base of 13 steps in concentric circles and a higher altar 4 steps on the bat "flying " rose . In his case , he is surrounded by 10 platforms built at uniform distances, three of which are grouped on the basis
common .
Between 1 and 2 Circle the Ball is whose measures are 111 meters long and 90 meters long for the inside of the field, and averaged 9.5 meters wide for the field ; it has an area of approximately 2,200 m2 so it is the largest in Mesoamerica for its time.
EL Circle 1 or " EL great Guachi " enclosure is the largest and most monumental until now found throughout the area of the West, although the most damaged by looters scale ; This circle is about 125 meters in diameter and has 12 platforms , of which only five have been excavated . The central altar is just over 50 meters in diameter and the yard that surrounds it has 22 to 23 meters around the altar. Behind this circle , in shaping the hill in a semicircle, the anfiteatrocon is an excellent natural acoustics allowed the realization of political and religious events.