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1955 Map of Sioux City

Name: 1955 Topographic Map of Sioux City
Creator: U.S. Geological Survey
Published: 1976
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1976

About this map

The Missouri River serves as the dominant spine of this mid-century landscape, carving a wide valley that separates the South Dakota-Nebraska and South Dakota-Iowa borders. The newly formed Lewis and Clark Lake, created by the Gavins Point Dam near Yankton, indicates the era's significant hydro-engineering efforts to control the river's flow. This map documents a critical junction of agriculture and education, anchoring the region with institutions like the University of South Dakota in Vermillion and Wayne State College in Wayne.

A dense network of rail lines, including the Chicago and North Western Railway and the Illinois Central Railroad, radiates from the tri-state hub of Sioux City. To the south, the Winnebago Indian Reservation and Omaha Indian Reservation preserve a distinct land-use pattern against the surrounding township grids. From the Loess Hills to the river flats, the map captures a transition point where the eastern plains meet the Missouri's winding course.