1904. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Datum is mean sea level." sheets 69 x 110 centimeters or smaller Scale 1:31,680 General Map Collection. The Survey (Washington, D.C).
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1901. Geological Survey (U.S.). Shows California southward from the San Gabriel Mountains to the southern Riverside County boundary, and eastward from Sepulveda Canyon to the San ... The Survey (Washington, D.C).
1882. U.S. Coast and Geodetic Survey. Relief shown by hachures. Depths shown by soundings and shading.; "Aids to navigation corrected to 1887."; "Reduction of topography by H. Lindenkoh... The Survey (Washington, D.C).
1926. Geological Survey (U.S.). Relief shown by contours and spot heights.; Contour interval 50 feet.; Also shows status of roads.; "Surveyed in 1925-1926."; "N4022-W12115." 53 x ... The Survey (Washington, D.C).