1950 Map of Tunnel Hill, 1964 Print
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1950 Map of Tunnel Hill

USGS Topo · Published 1964

About this map

The Rubicon River carves a deep divide between Placer and El Dorado Counties in this mid-century survey of the California gold country. The landscape is defined by its mining heritage and industrial infrastructure, featuring a series of remote operations like the Boedner Mine near Pennsylvania Point and the Kenna Mine along Missouri Canyon. These sites are linked by a network of unimproved roads and the complex water-management system of the Georgetown Ditch, which follows the contours of the steep ridges to feed local operations.


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Map Details

Date Portrayed1950
Date Published1964
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.9 inches

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Source Details

CopyrightPublic Domain