This species' range extends in the United States from north-central California southward along the coast and the western slope of the Sierra Nevada south through southwestern California to Baja California, Mexico (Jennings 1983, Grismer and Mahrdt 1996, Stebbins 2003). In Mexico, it ranges widely and continuously south to Sierra San Pedro Martir, but in disjunct populations south of this as far as Cañon de los Reyes. Its elevational range extends from near sea level to about 2,250 m asl (7,400 feet) (Stebbins 2003).
Rights Holder: International Union for Conservation of Nature and Natural Resources
Bibliographic Citation: Hollingsworth, B., Hammerson, G.A., Frost, D.R., Vazquez Díaz, J. & Quintero Díaz, G.E. 2007.
Masticophis lateralis. In: IUCN 2014 . IUCN Red List of Threatened Species. Version 2014.1 . <
www.iucnredlist.org>
