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Illinois Maps Topograp... (1)
Illinois Maps Topograp... (1)

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1. Illinois (Henry County) Geneseo quadrangle Illinois (Henry County) Geneseo quadrangle Illinois; Maps; Topographic maps; Topography; Geneseo (Ill.); Henry County (Ill.) "Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army."; "Surveyed in 1931 and 1932."; Contour interval 10 feet. Coordinates: (W 90⁰15’00"--W 90⁰00’00"/N...

2. Earlville quadrangle, Illinois : 15 minute series (topographic) Earlville quadrangle, Illinois : 15 minute series (topographic) Illinois; Maps; Topographic maps; Topography; Earlville (Ill.) Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-table surveys 1951."; "Contour interval 10 feet."; Coordinates:...
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