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select all : clear all : add to favorites results 1-17 of 17 item(s)  page 1 of 1 : ( <<  1  >> ) :: previous : next
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1. Illinois (Iroquois county), Gilman quadrangle : 15-minute series Illinois (Iroquois county), Gilman quadrangle : 15-minute series Illinois; Maps; Topographic maps; Topography; Gilman (Ill.); Iroquois County (Ill.) Relief shown by contours and spot heights.; "Mapped by the Geological Survey 1943-1944."; "Contour interval 10 feet."

2. Wapello quadrangle, Iowa-Illinois : 15 minute series (topographic) Wapello quadrangle, Iowa-Illinois : 15 minute series (topographic) Maps; Topographic maps; Topography; Illinois; Wapello (Ill.) Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods, 1946."; "Contour interval 10 feet."

3. Bement quadrangle, Illinois : 15 minute series (topographic) Bement quadrangle, Illinois : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Bement (Ill.) Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1946 and 1953. Topography by plane-table surveys 1954-1955."

4. Illinois, Ramsey quadrangle : 15-minute series. Illinois, Ramsey quadrangle : 15-minute series. Ramsey (Ill.); Illinois; Maps; Topographic maps; Topography Relief shown by contours and spot heights.; "Mapped by the Geological Survey, 1922 and 1942-1944"; "Contour interval 20 feet."

5. Augusta quadrangle, Illinois Augusta quadrangle, Illinois Illinois; Maps; Topographic maps; Topography; Augusta (Ill.) Relief shown by contours and spot heights. "Topography by plane-table methods 1946."

6. Illinois, Camp Point quadrangle : 15-minute series Illinois, Camp Point quadrangle : 15-minute series Illinois; Maps; Topographic maps; Topography; Camp Point (Ill.) Relief shown by contours and spot heights.; "Mapped by the Geological Survey 1946."; "Contour interval 20 feet ; 10 foot contours added in dashed lines."

7. Buckley quadrangle, Illinois : 15 minute series (topographic) Buckley quadrangle, Illinois : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Buckley (Ill.) Relief shown by contours and spot heights.; Contour interval 10 feet.; "Culture and drainage in part compiled from aerial photographs taken 1940. Topography by plane-table methods, 1946."

8. Nokomis quadrangle, Illinois : 15 minute series (topographic) Nokomis quadrangle, Illinois : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Nokomis (Ill.) Relief shown by contours and spot heights.; "Contour interval 10 feet."; "Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-table methods 1946."

9. Mendon quadrangle, Illinois-Missouri : 15 minute series (topographic). Mendon quadrangle, Illinois-Missouri : 15 minute series (topographic). Mendon; Missouri; Illinois; Maps; Topographic maps; Topography Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods, 1946."; "Contour interval 20 feet."

10. Kansas quadrangle, Illinois : 15 minute series (topographic) Kansas quadrangle, Illinois : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Kansas (Ill.) Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-table methods 1946."; "Contour interval 10 feet."

11. Peotone quadrangle, Illinois : 15 minute series (topographic). Peotone quadrangle, Illinois : 15 minute series (topographic). Peotone (Ill.); Illinois; Maps; Topographic maps; Topography Relief shown by contours and spot heights.; "Topography by plane-table methods, 1946"; "Contour interval 10 feet."

12. Fairfield quadrangle, Illinois : 15 minute series (topographic) Fairfield quadrangle, Illinois : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Fairfield (Ill.) Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods 1946."; Contour interval 20 feet.; Coordinates (W...

13. Illinois, Albion Quadrangle : 15-minute series. Illinois, Albion Quadrangle : 15-minute series. Illinois; Maps; Topographic maps; Topography; Albion (Ill.) Relief shown by contours and spot heights.; "Road classification 1945."; "Mapped by the Geological Survey 1943." Coordinates: (W 88⁰15ʹ00ʺ--W 88⁰00ʹ00ʺ/N 38⁰30ʹ00ʺ--N 38⁰15ʹ00ʺ)

14. Iowa-Illinois, Muscatine quadrangle : 15-minute series. Iowa-Illinois, Muscatine quadrangle : 15-minute series. Muscatane (Ill.); Iowa; Illinois; Maps; Topographic maps; Topography Relief shown by contours and spot heights.; "Mapped by the Geological Survey 1946"; "Contour interval 20 feet."; Shows roadway classification as of 1947.; Coordinates: (W 91⁰15ʹ00ʺ--W 91⁰00ʹ00ʺ/N...

15. Illinois, Ashley quadrangle Illinois, Ashley quadrangle Illinois; Maps; Topographic maps; Topography; Ashley (Ill.) Relief shown by contours and spot heights.; "Road classification 1945."; "Mapped by the Geological Survey 1942-1943."

16. Illinois, Sterling quadrangle : 15-minute series Illinois, Sterling quadrangle : 15-minute series Maps; Topographic maps; Topography; Illinois; Sterling (Ill.); Rock Falls (Ill.); Whiteside County (Ill.); Carroll County (Ill.) Relief shown by contours and spot heights.; "Mapped by the Geological Survey, 1946"; "Contour interval 20 feet."

17. Crete quadrangle, Illinois-Indiana : 15 minute series (topographic) Crete quadrangle, Illinois-Indiana : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Crete (Ill.); Indiana Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-table methods 1946."; "Contour interval 10 feet."
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