1925. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1922-1923.";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.).
Search Results
1905. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1889-90, and [18]99.";Relief shown by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).
1958. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1922-1923";Relief shown by contours and spot heights.;1 map, colored;45 x 35 cm.;1:62,500. Geological Survey Division (Urbana, Ill.) and U.S. Geological Survey (U.S.).
1958. Geological Survey (U.S.). Contour interval 20 feet.;"Mapped by the Geological Survey 1928, 1935 and 1942";Relief shown by contours and spot heights.;1 map, colored;45 x 35 c... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
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.).
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.).
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.).
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.).
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.).
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.).