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You searched for: Publisher Geological Survey Division (Urbana, Ill.) Remove constraint Publisher: Geological Survey Division (Urbana, Ill.) Type Image Remove constraint Type: Image Year 1918 Remove constraint Year: 1918
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1.

Illinois, Dixon quadrangle : topography university-of-illinois-urbana-champaign

1918. 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...

2.

Illinois, Good Hope quadrangle : topography university-of-illinois-urbana-champaign

1918. 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...

3.

Illinois, Kings quadrangle : topography university-of-illinois-urbana-champaign

1918. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1917.";"Surveyed in cooperation with the War Department and the State of Illinois.";Relief shown by contours...

4.

Illinois, Kirkland quadrangle : topography university-of-illinois-urbana-champaign

1918. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1917.";"Surveyed in cooperation with the War Department and the State of Illinois.";Relief shown by contours...

5.

Illinois, La Harpe quadrangle : topography university-of-illinois-urbana-champaign

1918. 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...

6.

Illinois, Morris quadrangle : topography university-of-illinois-urbana-champaign

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...

7.

Illinois, Wilmington quadrangle : topography university-of-illinois-urbana-champaign

1918. 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...

8.

Illinois-Missouri, Campbell Hill quadrangle : topography university-of-illinois-urbana-champaign

1918. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1915-1916.";"Surveyed in cooperation with the States of Illinois and Missouri."; (W 89⁰45ʹ00ʺ--W 89⁰30ʹ00ʺ/N...

9.

Illinois-Wisconsin, Belvidere quadrangle : topography university-of-illinois-urbana-champaign

1918. Geological Survey (U.S.). Surveyed in 1917.;Surveyed in cooperation with the War Department and the State of Illinois.";Relief shown by contours and spot heights.;1 map, col...