 In his opinion the influence can also be seen in the site's tower kiva.Lekson, Windes, and Fournier believe the architectural parallels between the colonnade at Chetro Ketl and structures in Mexico "are probably attributable to the adoption of Mesoamerican symbols appropriated by the flow of ideas carried by merchants".In their opinion, the connection "may have been the result of an interaction mechanism of indirect contact between nuclear Mesoamerica and Chaco though northwestern Mexico."