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941. Illinois, Springfield quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1907. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1905.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot heights.;... Geological Survey (U.S.) and State Survey (Urbana, Ill.).

942. Illinois, St. Elmo quadrangle : 15-minute series

Maps University Of Illinois Urbana Champaign Public content
1958. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1939-1941";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.).

943. Illinois (Stephenson County) Freeport quadrangle : 15-minute series

Maps University Of Illinois Urbana Champaign Public content
1944. Geological Survey (U.S.). Contour interval 20 feet.;Relief shown by contours and spot heights.;Road classification as of 1944.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

944. Illinois, Sterling quadrangle : 15-minute series

Maps University Of Illinois Urbana Champaign Public content
1948. Geological Survey (U.S.). Contour interval 20 feet.;"Mapped by the Geological Survey, 1946";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.).

945. Illinois, Streator quadrangle

Maps University Of Illinois Urbana Champaign Public content
1927. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1924 and 1925";Includes text on verso.;Relief shown by contours and spot heights.;1 map, colored;45 x 34 cm.;... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

946. Illinois, Sullivan quadrangle

Maps University Of Illinois Urbana Champaign Public content
1940. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1930 and 1935.";Relief shown by contours.;1 map, colored;45 x 35 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

947. Illinois, Sumner quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1913. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1911.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours.;1 map, colored;45 x 3... Geological Survey (U.S.) and State Geological Survey (Urbana, Ill.).

948. Illinois, Sycamore quadrangle

Maps University Of Illinois Urbana Champaign Public content
1937. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1929 and 1933-1934";Relief shown by contours and spot heights.;Shows roadway classification as of 1936.;1 map... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

949. Illinois, Tallula quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1909. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1906-1907.";"Surveyed in cooperation with the State of Illinois."; (W 90⁰00ʹ00ʺ--W 89⁰45ʹ00ʺ/N 40⁰00ʹ00ʺ--N ... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

950. Illinois, Taylorville quadrangle

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1925. Geological Survey (U.S.). Relief shown by contours and spot heights.;"Surveyed in 1922-1923.";Contour interval 10 feet.;1 map, colored;45 x 35 cm.;1:62,500. Geological Survey Division (Urbana, Ill.) and Geological Survey (U.S.).