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1926 Map of Boulder Canyon
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1926 Map of Boulder Canyon

USGS Topo · Published 1926

About this map

The Colorado River carves through the heart of the Southwest in this 1926 survey, documenting the landscape immediately before the construction of Hoover Dam transformed the region forever. Several proposed locations for river management are noted, including the Boulder Canyon Dam Site, the Callville Dam Site, and the Upper Black Canyon Dam Site. These markers highlight a pivotal moment when federal and municipal agencies were actively engineering the river's future.

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Map Details

Date Portrayed1926
Date Published1926
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:96000
Physical Dimensions22.07 x 26.76 inches

Editions of this 1926 Boulder Canyon Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain