1951 Map of Clark Fork, 1952 Print
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1951 Map of Clark Fork

USGS Topo · Published 1952

About this map

Clark Fork serves as the focal point of this 1951 survey, situated along the Northern Pacific railroad as it follows the path of the massive Clark Fork river. This era captures a landscape of intense resource extraction and early hydroelectric development, evidenced by the cluster of active and inactive workings such as the Whitedelf Mine, Hope Mine, and the Lawrence Mine. The map highlights a significant pending geographical change, with blue hatching indicating the area soon to be submerged by the completion of Albeni Falls Dam, including portions of the river valley near Derr Island.


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Map Details

Date Portrayed1951
Date Published1952
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16 x 20.9 inches

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Source Details

CopyrightPublic Domain