1986 Map of Sioux City North

About this map

The Missouri River and Big Sioux River define the tri-state geography of this mid-1980s landscape, where the borders of Iowa, South Dakota, and Nebraska converge. Centered on the fertile plains north of Sioux City, the map reveals a dense network of farming townships like Pleasant Valley and Elkhorn connected by the rails of the Burlington Northern and Chicago and North Western. Key regional hubs such as Le Mars, Hawarden, and Vermillion—home to the University of South Dakota—stand out against the gridded rural sections. Notable topographic and recreational landmarks including Spirit Mound, Stone State Park, and Ponca State Park provide contrast to the industrial presence of numerous Gravel Pits and quarries scattered throughout the valley, reflecting the local geology and extraction economy of the period.