Sierra de San Francisco
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.
- Natural 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).
- Ken Hedges and James E. Workman. 1983
- C. Michael Hogan. 2009
- C. Michael Hogan. 2009. Elephant Tree: Bursera microphylla, GlobalTwitcher.com, ed. N. Stromberg
- Ken Hedges and James E. Workman. 1983. Rock art papers, Volume 1, Page 5, San Diego Museum of Man, 98 pages