 According to archaeologist Efraín Cárdenas, from archaeological evidence, the first occupation is tentatively chronologically located at between 900 and 1200 CE, corresponding to Nahuatl speaking groups.During the second period the site is occupied by the Purépecha culture, according to archaeologist Efraín Cárdenas.The second occupation period, chronologically placed at between 1200 and 1530 CE, corresponds to Tarascan domain, of the Lake Pátzcuaro basin and almost all the northern part of the State of Michoacán.