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91. Illinois, Mahomet quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
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.).

92. Illinois, Manito quadrangle

Maps University Of Illinois Urbana Champaign Public content
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.).

93. Illinois (Marion County) Salem quadrangle

Maps University Of Illinois Urbana Champaign Public content
1960. Geological Survey (U.S.). Relief shown by contours and spot heights.;"Surveyed in 1921, 1926, 1928, and 1934";Contour interval 10 feet.;1 map, colored;45 x 35 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

94. Illinois, Marion Quadrangle

Maps University Of Illinois Urbana Champaign Public content
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.).

95. Illinois, Mattoon 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.";Relief shown by contours a... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

96. Illinois, McLeansboro quadrangle : 15-minute series.

Maps University Of Illinois Urbana Champaign Public content
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.).

97. Illinois, Meredosia quadrangle

Maps University Of Illinois Urbana Champaign Public content
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.).

98. Illinois, Monticello quadrangle : 15 minute series.

Maps University Of Illinois Urbana Champaign Public content
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.).

99. Illinois, Morris quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
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.).

100. Illinois, Morrison quadrangle

Maps University Of Illinois Urbana Champaign Public content
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.).