Prepared under the direction of the Chief of Engineers, U.S. Army, 1942. Horizontal control by 29th Engineers, U.S. Army, 1940, and U.S. Coast and Geodetic Survey, 1939. Vertical control by 29th Engineers, U.S. Army, 1940, U.S. Coast and Geodetic Survey, 1935, and U.S. Geological Survey, 1938. Topography by 29th Engineers, U.S. Army, 1942, from Tandem T-3A (5 lens) aerial photographs, by stereo-comparagraph methods, Intermediate elevations by multiplex aero-projectors. Photography by 91st Observation Squadron, Air Corps, U.S. Army, 1939. Polyconic Projection, North American 1927 Datum. Contour interval 40 feet. [Vertical] datum is mean sea level (1929 Adj.)
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image
Format
Scale: 1:62,500. Map type: TF. Polyconic projection Horizontal datum: North American 1927 datum Grid note: 5,000 yard grid compute drom "Grid System for Progressive Maps in the U.S." Zone G. U.S.C.and G.S. Special Publication No. 59 10,000 foot plane coordinates computed from U.S.C. and G.S. Projection Tables for California VI… Vertical datum: mean sea level (1929 Adj.) Contour interval on land and off shore 50 feet. image/tiff topographic maps maps contour maps relief maps quadrangle maps
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