Sierra de San Francisco

The Sierra de San Francisco is a mountain range in Mulegé Municipality of the northern region of Baja California Sur state, in northwestern Mexico.

Geography
The Sierra de San Francisco are on the eastern side of the Baja California Peninsula, north of the town of San Ignacio, They are part of the Peninsular Ranges system, which extends from Southern California to the southern tip of the Baja California Peninsula.

Within the mountains are the prehistoric rock art pictographs of the Cochimí people, also known as the Rock Paintings of Sierra de San Francisco.
 * History

The Sierra de San Francisco are within the El Vizcaíno Biosphere Reserve. The vegetation found in the Sierra de San Francisco range is of the Baja California desert ecoregion. A notable tree here is the Elephant tree (Bursera microphylla).
 * Natural history