Brief SynthesisThe central part of Baja California peninsula is a region of Mexico that concentrates one of the most extraordinary repertoires of rock art in the country, the Rock Paintings of the Sierra de San Francisco. One of the most significant features of the peninsular prehistory is the mass production of rock art since ancient times and the development of rock art tradition of the Great Murals. Those in the San Francisco area are divided into four main groups - Guadalupe, Santa Teresa, San Gregorio and Cerritos. IntegrityThe Rock Paintings of the Sierra de San Francisco encompass an area of 183, 956 ha, where more than 400 sites have been recorded, the most important of them within the reserve, near San Francisco and Mulege, over 250 in all. AuthenticityThe Rock Paintings of the Sierra de San Francisco are entirely authentic.