
Irwin sits at the heart of this Western Iowa agricultural landscape, where the local street grid including Bella St, Ann St, and Cora St gives way to the section-line roads of Shelby County. The town is situated just north of where the West Nishnabotna River winds through the bottomlands, joined by tributaries like Elk Creek and Long Branch. To the northeast, the smaller settlement of Botna marks another point of historical interest along the border of Crawford and Shelby Counties. The map reveals a highly structured rural environment defined by its township boundaries and a network of named county roads such as Street F16 and Street F24. Genealogists and local historians can locate Oak Hill Cemetery south of town, providing a precise spatial context for early family records in Jefferson and Polk Townships.
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This is the sole edition of this map. No revisions or reprints were ever made.