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1958 Map of Knoxville

Name: 1958 Topographic Map of Knoxville
Creator: U.S. Geological Survey
Published: 1961
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1961

About this map

The quicksilver mining legacy of northern Napa County is clearly visible on this late 1950s survey. The settlement of Knoxville sits as a central hub, surrounded by a cluster of significant mineral operations including the Manhattan Mine, Royal Mine, and Reed Mine. These sites mark a landscape shaped by industrial extraction at the intersection of the Napa and Yolo county lines. Beyond the mine works, the terrain is defined by the prominent Blue Ridge and Long Canyon, with numerous water sources like Davis Creek and Eticuera Creek draining the steep slopes.

Remote backcountry features suggest a land utilized for both industry and livestock, with labels such as Lone Pine Thicket, Cedar Valley, and Smith Flat indicating specific localized pockets of use. Transport through this difficult terrain relied on the Berryessa-Knoxville Road and several Jeep Trails. The presence of Zim Zim Falls and Mysterious Valley underscores the isolation and distinct character of this portion of the Inner Coast Ranges.