Los Guachimontones is the largest Late Formative to Classic period pre-Columbian archaeological site in the state of Jalisco. Situated in the hills above the town of Teuchitlán that provides the namesake for the culture that built the site, Los Guachimontones is part of the Agave Landscape and Ancient Industrial Facilities of Tequila UNESCO world heritage site and a major tourist attraction within the Tequila Valleys.
Los Guachimontones is one of several dozen Teuchitlán Culture sites within the Tequila Valleys, though it is by far the largest site in terms of both the number and size of its ceremonial buildings. These buildings, called guachimontones after the site name, are bulls-eye shaped buildings consisting of several distinct architectural elements that constitute a whole structure. These unique buildings are found primarily in the Tequila Valleys with other examples found in northern Jalisco near Bolaños, Guanajuato to the east, and Colima to the south.