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1. Illinois, Divernon quadrangle Illinois, Divernon quadrangle Illinois; Maps; Topographic maps; Topography; Divernon (Ill.) Relief shown by contours and spot heights.; "Contour interval 10 feet"; "Surveyed in 1922."

2. Illinois, Raymond quadrangle. Illinois, Raymond quadrangle. Raymond (Ill.); Illinois; Maps; Topographic maps; Topography Relief shown by contours and spot heights.; "Contour interval 10 feet."; "Surveyed in 1922-1923."

3. Illinois (Macoupin County), Carlinville quadrangle Illinois (Macoupin County), Carlinville quadrangle Illinois; Maps; Topographic maps; Topography; Carlinville (Ill.); Macoupin County (Ill.) Relief shown by contours and spot heights.; "Surveyed in 1923."; "Contour interval 10 feet."

4. Illinois (Warren County), Monmouth quadrangle Illinois (Warren County), Monmouth quadrangle Monmouth (Ill.); Warren County (Ill.); Illinois; Maps; Topographic maps; Topography "Contour interval 20 feet."; "Surveyed in 1920-1921."; "Surveyed in cooperation with the State of Illinois." Coordinates: (W 90⁰45ʹ00ʺ--W 90⁰30ʹ00ʺ/N 41⁰00ʹ00ʺ--N 40⁰45ʹ00ʺ)

5. Illinois, Oregon quadrangle. Illinois, Oregon quadrangle. Oregon (Ill.); Illinois; Maps; Topographic maps; Topography Relief shown by contours and spot heights.; "Surveyed in 1921-1922"; "Contour interval 20 feet."; Coordinates: (W 89⁰30ʹ00ʺ--W 89⁰15ʹ00ʺ/N 42⁰15ʹ00ʺ--N 42⁰00ʹ00ʺ)

6. Illinois-Missouri, Campbell Hill quadrangle : topography Illinois-Missouri, Campbell Hill quadrangle : topography Illinois; Maps; Topographic maps; Topography; Campbell Hill; Missouri Relief shown by contours and spot heights.; "Surveyed in 1915-1916."; "Surveyed in cooperation with the States of Illinois and Missouri."; "Contour interval 20 feet."; Coordinates: (W 89⁰45ʹ00ʺ--W...

7. Illinois, Waverly quadrangle Illinois, Waverly quadrangle Maps; Topographic maps; Topography; Illinois; Waverly (Ill.) Relief shown by contours and spot heights.; "Surveyed in 1922 and 1924."; "Contour interval 10 feet."; Shows roadway classification as of Oct., 1925.; Text and illustration on verso.
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