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1991 Map of Illinois City

Name: 1991 Topographic Map of Illinois City
Creator: U.S. Geological Survey
Published: 1992
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1992

About this map

The Mississippi River forms a complex hydrologic network as it crosses the border between Iowa and Illinois, characterized by a series of significant islands and secondary channels. Along the northern bank in Iowa, the landscape is defined by the steep wooded ravines of Wildcat Den State Park and the structured grounds of the Fairport State Fish Hatchery. The river itself is divided by Geneva Island, Hog Island, and Hershey Island, which create the slow-moving waters of Wyoming Slough and Hershey Slough.

Settlement patterns reflect the rural agricultural heritage of both Sweetland and Drury townships. Local family history is centered around several small crossroads communities and country churches, such as Sweetland Center and Ziegler Memorial Ch. On the southern side of the river, Illinois City sits atop the bluff overlooking the fertile bottomlands and Drury Slough, where the Fourth Road On Levee provides critical infrastructure for the low-lying fields near Island No 330.