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1950 Map of Canyon Ferry, 1956 Print
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1950 Map of Canyon Ferry

USGS Topo · Published 1956

About this map

The Missouri River corridor undergoes a major transformation on this mid-century survey, which documents the proposed Lake Sewell Reservoir area at the boundary of Lewis and Clark and Broadwater Counties. The map captures a landscape in transition as the New Canyon Ferry Dam is sited near the original Canyon Ferry Dam, an engineering shift that would eventually alter the valley floor. To the east, the Big Belt Mountains rise sharply, dissected by numerous drainages like Hellgate Gulch and Avalanche Gulch. Historic mining activity is evident at the Argo Mine and various unnamed mine shafts near the settlement of York. In the southern reaches, the Spokane Ditch and the Northern Pacific railroad line skirt the Spokane Hills, serving the agricultural and industrial needs of the region during this era of federal river basin development.

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Map Details

Date Portrayed1950
Date Published1956
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions17 x 20.8 inches

Editions of this 1950 Canyon Ferry Map

Historical Maps of Spokane Creek Through Time

129 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain