1907. Geological Survey (U.S.). Surveyed in 1905.;"Surveyed in cooperation with the State of Illinois.";Includes diagram of township.;Relief shown by contours.;1 map, colored;45 x... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
Search Results
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.) and Geological Survey Division (Urbana, Ill.).
1925. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1923.";Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1937. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army.";Relief shown by contours a... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1945. Geological Survey (U.S.). Contour interval 20 feet.;"Mapped by the Geological Survey 1942";Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1931. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1926, 1927, and 1928";Relief shown by contours and spot heights.;1 map, colored;45 x 35 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1943. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1936 and 1937, Culture revised in part, 1942";Relief shown by contours and spot heights.;1 map, colored;45 x... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1918. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1915.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours and spot heights.;1 ma... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1940. 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 1927 and 1933-... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1915. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1913";"Surveyed in cooperation with the State of Illinois."; (W 89⁰45ʹ00ʺ--W 89⁰30ʹ00ʺ/N 39⁰15ʹ00ʺ--N 39⁰00ʹ... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).