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Illinois Maps Topograp... (1)
Illinois Maps Topograp... (1)
Rushville (Ill.); Maps... (1)

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1. Illinois, Rushville quadrangle Illinois, Rushville quadrangle Rushville (Ill.); Maps; Topographic maps; Topography; Illinois Relief shown by contours and spot heights.; "Surveyed in 1922-1923"; "Contour interval 20 feet."

2. Illinois, Gibson City quadrangle Illinois, Gibson City quadrangle Illinois; Maps; Topographic maps; Topography; Gibson City (Ill.) Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army."; "Surveyed in 1924-1925."; "Contour interval 10 feet."

3. Kentucky-Illinois, La Center quadrangle Kentucky-Illinois, La Center quadrangle Illinois; Maps; Topographic maps; Topography; Kentucky; La Center Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army."; "Surveyed in 1926 and 1928"; "Contour interval 20 feet"; Road...
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