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Start Over Access Public Publisher Geological Survey (U.S.)

51. Illinois, Danvers quadrangle

Maps University Of Illinois Urbana Champaign Public content
1930. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1926-1927.";Relief shown by contours and spot heights.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

52. Illinois, De Kalb quadrangle

Maps University Of Illinois Urbana Champaign Public content
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.";"Surveyed in 1934";Relief s... Geological Survey (U.S.).

53. Illinois, Decatur quadrangle

Maps University Of Illinois Urbana Champaign Public content
1933. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1929"; (W 89⁰00ʹ00ʺ--W 88⁰45ʹ00ʺ/N 40⁰00ʹ00ʺ--N 39⁰45ʹ00ʺ);Relief shown by contours and spot heights.;Shows r... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

54. Illinois, Divernon quadrangle

Maps University Of Illinois Urbana Champaign Public content
1957. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1922.";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.).

55. Illinois, Dixon quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1918. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1916.";"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.).

56. Illinois, Dongola quadrangle

Maps University Of Illinois Urbana Champaign Public content
1958. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1919-1920, in cooperation with the State of Illinois.";Relief shown by contours and spot heights.;1 map, col... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

57. Illinois, Dunlap sheet

Maps University Of Illinois Urbana Champaign Public content
1893. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1891.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

58. Illinois, Duquoin quadrangle

Maps University Of Illinois Urbana Champaign Public content
1926. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1924";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.).

59. Illinois, Eldorado quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1906. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1905.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours.;1 map, colored;45 x 3... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

60. Illinois, Elgin quadrangle

Maps University Of Illinois Urbana Champaign Public content
1925. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1923";Relief shown by contours and spot heights.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).