A three dimensional map of the Los Angeles Basin showing flood control programs completed and authorized. At head of title: Los Angeles County Flood Control District. Sticker: Compliments of Supervisor Burton W. Chace. Relief shown by shading. Colored three-dimensional relief map, mounted within a frame. Shows county, U.S. Corps of Engineers and U.S. Dept. of Agriculture programs. Protective box with cover. Prime meridian: GM. Relief: three-dimensional. Graphic Scale: Miles. Projection: Cylindrical. Printing Process: Lithography.
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