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1948 Map of Portage
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1948 Map of Portage

USGS Topo · Published 1948

About this map

The Missouri River carves a deep course through this landscape at the dawn of the postwar era, marked by significant hydroelectric and industrial infrastructure. The presence of Morony Dam and Rainbow Dam downstream from the northeastern edge of Great Falls underscores the river's role in powering the region's growth. To the southwest, the Great Falls Army Air Force Base reflects the military footprint following the second World War, while the State Fish Hatchery and State Deaf & Dumb School point to established public institutions. Small agrarian settlements and siding stops like Portage, Salem, and Floweree are connected by the Great Northern and Chicago Milwaukee St Paul and Pacific railroads. The map also captures several local education centers including Roosevelt Sch and Salem Sch, serving the surrounding ranchlands.

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Map Details

Date Portrayed1948
Date Published1948
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions17 x 21.3 inches

Editions of this 1948 Portage Map

Historical Maps of Great Falls Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain