early survey of the area as the dividing feature of the Salt River valley. There are a variety of flora and fauna within the Salt River Mountains. One of the notable tree species here is the elephant tree, Bursera microphylla. References C. Michael Hogan. 2009. Elephant Tree: Bursera microphylla, GlobalTwitcher.com, ed. N. Stromberg United States Dept. of the Interior. 1883. Annual report of the United States Geological and Geographical Survey of the Territories (U.S.), Geological and Geographical Survey of the Territories (U.S.); Washington DC: U.S. G.P.O., 1874–1883. Line notes External links South Mountain Trails - Interactive Map HikeArizona.COM Map of mountains in the Phoenix area Mountain ranges of Arizona Mountain ranges of Maricopa County, Arizona