1932. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1928-1929.";Relief shown by contours and spot heights.;Road classification 1932.;1 map, colored;45 x 34 cm.;... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
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1932. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1927 and 1929.";Relief shown by contours and spot heights.;Road classification 1932.;1 map, colored;45 x 34 ... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
1932. Geological Survey (U.S.). Contour interval 20 feet.;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army.";"Surveyed in 1924, 1928, 1... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
1932. Geological Survey (U.S.). Surveyed in 1928-1929.;Relief shown by contours and spot heights.;Road classification 1932.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
1932. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1928-1929.";Relief shown by contours and spot heights.;Shows highway classification as of 1932.;Text and ill... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
1932. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1927-1928"; (W 89⁰30ʹ00ʺ--W 89⁰15ʹ00ʺ/N 40⁰45ʹ00ʺ--N 40⁰30ʹ00ʺ);Relief shown by contours and spot heights.;Sh... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
1932. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1924, 1927, and 1929.";Relief shown by contours and spot heights.;Road classification as of 1931.;1 map, col... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
1932. Geological Survey (U.S.). Contour interval 20 feet;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army.";"Surveyed in 1926 and 1928"... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.)|Kentucky Geological Survey (Lexington, Ky.).