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1970 Map of Missouri Valley NW

Name: 1970 Topographic Map of Missouri Valley NW
Creator: U.S. Geological Survey
Published: 1972
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1972

About this map

The loess hills of western Iowa dominate this 1970s landscape, where the deeply dissected terrain of Magnolia and Raglan townships meets the flat alluvial plains of the Missouri River valley. The settlement of Magnolia sits on the eastern heights, serving as a focal point for the surrounding rural area. To the south, the community of Calhoun is positioned near the junction of Willow Creek and Allen Creek, reflecting the importance of water management in this agricultural corridor.

Sophisticated drainage infrastructure, including the West Soldier Ditch and East Soldier Ditch, demonstrates the massive engineering efforts required to reclaim the valley floor for farming. For genealogists and local historians, the map documents significant landmarks such as the Magnolia Cem and Calhoun Cem, along with a localized Landing Strip and a Gaging Sta on the Willow Creek, illustrating the infrastructure of Harrison County during this era.