The Rock Paintings of Sierra de San Francisco is the name of the prehistoric rock art pictographs found in the Sierra de San Francisco mountain range in Mulegé Municipality of the northern region of Baja California Sur state, in Mexico.
The pictographs are representations of what was once the life of the Cochimi people, or Guachimis, in the Baja California peninsula. Little is known about this group, apart from the fact that they came from further north. These paintings on the roofs of rock shelters and on the rock walls of Sierra de San Francisco were first discovered by Europeans in the eighteenth century by the Spanish Jesuit missionary, Francisco Javier. According to traditional beliefs, the paintings were drawn by a race of giants. This is supported by the size of some human figures which are 2 metres (6.6 ft) tall. They have a magic-religious content. Other subjects include weapons, and animal species such as rabbit, puma, lynx, deer, wild goat/sheep, whale, turtle, tuna, sardine, octopus, eagle and pelican. There are also abstract elements of various forms.
The pictographs are at around 250 sites, which are located within the El Vizcaino Biosphere Reserve
. Access to the paintings is difficult due to the isolation location, which also has prevented vandalism.
The area has the most important concentration of Pre-Columbian art on the Baja California Peninsula. It is of exceptional quality at both national and international standards: for the high quality, extent, variety and originality of human and animal representations, remarkable colors, and excellent state of preservation. In 1989 the rock paintings of Sierra de San Francisco were nominated for, and in 1993 became, a World