Ciudad Guzmán (syō-ħäħˈ gōsmänˈ) [key], city (1990 pop. 72,619), Jalisco state, SW Mexico. It is a marketing and processing center, especially for hogs, with some minor industries. The city is the starting point for ascents of the Nevado de Colima (14,235 ft/4,339 m) and the smoking volcano, Colima (12,631 ft/3,850 m). Formerly called Zapotlán el Grande, Guzmán was the site of the pre-Columbian kingdom of Zapotlán, which was conquered by the Spanish in 1526.