1949 Map of Chicago Park, 1967 Print
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1949 Map of Chicago Park

USGS Topo · Published 1967

About this map

Chicago Park and the surrounding Sierra Nevada foothills are defined by a complex network of historic water systems and mining infrastructure. In the late 1940s, the landscape remained deeply marked by its gold-rush legacy, from the Placer Diggings at You Bet and Red Dog to the industrial operations at the Lava Cap Mine and Banner Mine. These hydraulic and hard-rock ventures relied on an intricate web of canals and ditches, such as the Boardman Canal, Siphon Ditch, and Chicago Park Ditch, which redirect water across the ridges and canyons formed by Greenhorn Creek and the Bear River.


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Map Details

Date Portrayed1949
Date Published1967
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

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Source Details

CopyrightPublic Domain