Surveyed and mapped under the direction of The United States Engineer Office, Louisville, Ky. Relief shown by contours and spot heights. Depths shown by soundings. "War Department"--Upper left corner of each sheet. "Revisions made July 1931." "This survey was made by use of aerial photography, plane table stadia, chained transit traverse control and second order vertical control. Aerial photography was begun August 21st and completed October 12, 1930." Includes index map on charts 1 and 5. Imprint: [Louisville, Ky.] : [United States Engineer Office], [1931] Dimensions: 93 x 97 cm or smaller
Allmaps