1996.Geology of Earthquakes. Robert S. Yeats, Kerry E. Sieh, and Clarence R. Allen. Oxford University Press, 1997. .Living with Earthquakes in California: A Survivor's Guide. Robert S. Yeats. Oregon State University Press, 2001. .The geology of a portion of the western Verdugo mountains. Robert L. Johnston, 1938.Geology Underfoot in Southern California. Robert Sharp and Allen Glazner. Mountain Press, 1993. (2nd Edition released in 2020).Assembling California. John McPhee. Farrar, Straus and Giroux, 1993. .Cycles of Rock and Water: At the Pacific Edge. Kenneth A. Brown. HarperCollins, 1993. .Birds of Los Angeles: Including Santa Barbara, Ventura and Orange Counties. Chris C. Fisher and Herbert Clarke. Lone Pine Publications, 1997. .A Flora of Southern California. Philip A. Munz. University of California Press, 1974.Native Trees of Southern California. Victor P. Peterson. University of California Press, 1970.Illustrated Guide to the Oaks of the Southern Californian Floristic Province: The Oaks of Coastal Southern California and Northwestern Baja California. Fred M. Roberts Jr. F. M. Roberts Publishing, 1995. .Plant Life in the World's Mediterranean Climates: California, Chile, South Africa, Australia and the Mediterranean Basin. Peter R. Dallman. University of California, 1998. .Island Called California: An Ecological Introduction to Its Natural Communities. Elna Bakker. Second Edition. University of California Press, 1984. .Natural History of Vacant Lots (California Natural History Guides). Matthew F. Vessel and Herbert H. Wong. University of California Press, 1987. .Growing California Native Plants. Marjorie D. Schmidt. University of California Press, 1981. .Introduction to California Beetles. Arthur V. Evans and James N. Hogue. University of California Press, 2004. .Geography and evolution in the pocket gophers of California. Joseph Grinnell. USGPO, 1927.Evolutionary Dynamics of the Pocket Gopher Thomomys Bottae, With Emphasis on California Populations. James L. Patton and Margaret F. Smith. University of California Press, 1990. .The Verdugos of Hispanic California. Marie E. Northrop. 1978. MapsAngeles Front Country Trail Map. San Rafael, California: Tom Harrison Maps, 2001. .Verdugo Mountains trail map. Matt Maxon, 2005 http://pctmap.homeip.net/data/PDF/Verdugo%20Mtns%2001-16-05.pdf Burbank, California, 7.5 minute topographic quadrangle map. United States Geological Survey. Pasadena, California, 7.5 minute topographic quadrangle map. United States Geological Survey.Mount La Tuna - Verdugo Peak - Tongva Peak - Mount Thom'' - External links Outdoor LA Hiking Trails - Hiking trails in the area with maps and directions to the trailheads. Verdugo Mountains Park Property - California State Parks page for the Verdugo Mountains Park Property Rim of the Valley Corridor Special Resource Study - National Park Service page about