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2022 Map of Fillmore

Name: 2022 Topographic Map of Fillmore
Creator: U.S. Geological Survey
Published: 2022
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2022

About this map

Cascade and the surrounding tri-county borderlands of Dubuque, Jones, and Jackson counties are defined by the winding course of the North Fork Maquoketa River and its deeply carved tributaries. This landscape shows the significant topographic relief of the Whitewater Canyon area, where Whitewater Creek cuts through the terrain southeast of the settlement of Fillmore. The drainage network, including Johns Creek, Lost Cr, and Farm Cr, dictates the placement of rural roads that often follow the ridgelines or valley floors.

Local transport history is preserved in names like Narrow Gauge Rd and Garry Owen Rd, hinting at early transit corridors and ethnic settlements. The map illustrates a modern rural infrastructure of industrial roads in Cascade, such as Industrial St SE, juxtaposed with long-established family routes like Roche Ln and Mc Allister Rd. This geography captures the transition from the river-fed valley floors to the high agricultural divides characteristic of eastern Iowa.