
The Standing Rock Indian Reservation and Cheyenne River Indian Reservation dominate this mid-century landscape of the north-central Dakotas. Significant infrastructure developments are evident as the Oahe Reservoir backs up against the Grand River and Moreau River, reshaping the riverine geography of the region. The map captures a critical period for the rail-and-resource economy, tracing the Chicago Milwaukee St Paul and Pacific through the central corridor and the Minneapolis St Paul and Sault Ste Marie line to the north. Resource extraction is noted at sites like the Keller Mine and a local Coal strip mine near Firesteel. Settlement patterns include larger hubs such as Mobridge and McIntosh, alongside numerous smaller sidings and ranching landmarks like Bickel Ranch and Miscol Ranch that indicate the rural agricultural foundations of the era.
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This is the sole edition of this map. No revisions or reprints were ever made.
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