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.).
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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.).
1938. Geological Survey (U.S.). Contour interval 10 feet. Text and ill. on verso.;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army.";"S... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1947. Geological Survey (U.S.). 1 map, colored;Contour interval 20 feet.;"Landmark buildings only shown in the city of Vandalia.";"Mapped by the Geological Survey 1945";Relief sho... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1921. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1916 and 1919.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours and spot heig... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1919. 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.).
1936. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1928 and 1932."; (W 90⁰15ʹ00ʺ--W 90⁰00ʹ00ʺ/N 40⁰00ʹ00ʺ--N 39⁰45ʹ00ʺ);Relief shown by contours and spot heigh... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1923. Geological Survey (U.S.). Surveyed in 1920-1921.; (W 90⁰45ʹ00ʺ--W 90⁰30ʹ00ʺ/N 41⁰00ʹ00ʺ--N 40⁰45ʹ00ʺ);Contour interval 20 feet.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1913. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1910.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot heights.;... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1926. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1922 and 1924.";Relief shown by contours and spot heights.;Shows roadway classification as of Oct., 1925.;Te... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).