Previously, the Sierra de San Francisco was inhabited by the Cochimí indigenous community, and in the 1700s it was invaded by Spanish missionaries who explored the peninsula of Baja California. The first records of the area date from 1789 in the writings of the Jesuit Francisco Javier Clavijero. According to the information that has been transmitted for generations, the ranch San Francisco de la Sierra was founded by Mr. Buenaventura Arce on December 12, 1857, however it was formally constituted until the year of 1867. The Sierra de San Francisco decades has been distinguished for hosting a large number of ranchers dedicated to the breeding and milking of goats and production of fresh cheese and oreado, which has always represented their most important income, which only adds to that originated by the sale of waste animals and male goats, and tourism activities for the visit of rock art galleries. Within the material culture highlights the use of leather for mounting attachments. Currently there are no indigenous people in the area, the ranchers are considered by some scholars as the survivors of the last local group belonging to the Cochimies and in fact there is a proposal before the INAH for the site to be declared as an indigenous people.