San Miguel Ixtapan, only archaeological site moderately excavated and studied, of the more than 180 sites existing in the region. The San Miguel Ixtapan culture flourished from 450 to 1522 CE, possibly the Chontal culture from the Balsas with close cultural and commercial ties with Teotihuacan, Tula, and the Central Highlands as well as other points of Tierra Caliente.
