Year: 1938 / Resource Type: Topographic maps / Publisher: Geological Survey (U.S.) - GeoBlacklight Search Results

Start Over Year 1938 Resource Type Topographic maps Publisher Geological Survey (U.S.)

1. Illinois, Genoa quadrangle

1938. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1932-33.";col.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

2. Illinois, Petersburg quadrangle

1938. Geological Survey (U.S.). Shows roadway classification as of 1937.;"Contour interval 10 feet";"Surveyed in 1922, 1928, and 1933";"Culture and drainage in part complied from ... Geological Survey (U.S.).

3. Illinois, Toledo quadrangle

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.).

4. Illinois-Indiana, Hoopeston quadrangle

1938. Geological Survey (U.S.). Relief shown by contours and spot heights.;Contour interval 10 feet.;"Surveyed in 1931-1933.";Road classification as of 1937.;1 map, colored;45 x 3... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).