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Start Over Creator Geological Survey (U.S.)

1. The topographic maps of the United States [standard symbols].

Maps University Of Illinois Urbana Champaign Public content
1882. Geological Survey (U.S.). Chart of standard map symbols used on U.S. topographic maps.;Map on verso.;1 chart, illustrated;56 x 44 cm. U.S. Geological Survey (Washington, D.C.).

2. Illinois, Des Plaines sheet

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1890. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1889-90.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. U.S. Geological Survey (U.S.).

3. Illinois, Chicago sheet

Maps University Of Illinois Urbana Champaign Public content
1891. Geological Survey (U.S.). Contour interval 5 feet.;"Surveyed in 1889.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

4. Illinois, Joliet sheet

Maps University Of Illinois Urbana Champaign Public content
1892. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1890.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

5. Illinois, Marseilles sheet.

Maps University Of Illinois Urbana Champaign Public content
1892. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1890.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

6. Illinois, Ottawa sheet.

Maps University Of Illinois Urbana Champaign Public content
1892. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1890.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

7. Illinois, Wilmington sheet

Maps University Of Illinois Urbana Champaign Public content
1892. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1890.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

8. Illinois-Indiana, Calumet sheet

Maps University Of Illinois Urbana Champaign Public content
1892. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1889.";Relief shown by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

9. Illinois, Dunlap sheet

Maps University Of Illinois Urbana Champaign Public content
1893. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1891.";Relief indicated by contours.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).

10. Illinois, Hennepin sheet

Maps University Of Illinois Urbana Champaign Public content
1893. Geological Survey (U.S.). 1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.).