Surveyed and mapped under the direction of the United States engineer officer, Louisville, Ky. 1930. Relief shown by contours and spot heights. Depths shown by soundings. Includes index map on chart 39. "Aerial photography was begun August 21st and completed October 12th, 1930 ..." "Horizontal control and mapping by W.N. Brown, Inc. ... Vertical control by U.S. Coast and Geodetic Survey, Brock and Weymouth and W.N. Brown, Inc. Aerial photogrpahy by Bowman Park Aero Company, Inc. Soundings by U.S. Engineer Office, Louisville, Ky." Imprint: Washington, D.C. : Williams & Heintz Co., 1931. Dimensions: 64 x 96 cm, on sheets 72 x 107 cm
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