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2010 Map of Portsmouth

Name: 2010 Topographic Map of Portsmouth
Creator: U.S. Geological Survey
Published: 2010
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2010

About this map

Portsmouth serves as the primary hub in this southwest Iowa landscape, where the rectilinear grid of country roads meets the diagonal flow of Mosquito Creek. The town is anchored by Saint Marys Cemetery on its northern edge, while the surrounding agricultural terrain is defined by a dense network of drainage, including Pigeon Creek, Little Pigeon Creek, and Spring Creek.

A distinct cultural footprint is visible in the local nomenclature, particularly along Flusche Strasse, reflecting the area's heritage. The map details a well-established rural infrastructure of numbered streets and named avenues like Toledo Ave and Vienna Ave, illustrating the transition from 20th-century farming patterns into the early 21st century. This survey provides a clear look at property access and waterway distribution before further modern development altered the rural character of Shelby County.