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1981 Map of Esperanza Mill
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1981 Map of Esperanza Mill

USGS Topo · Published 1981

About this map

Industrial mineral extraction and ranching history converge within the San Ignacio de la Canoa land grant. The massive footprint of the Sierrita Mine and its accompanying Mine Dump dominate the northwestern terrain, supported by the Esperanza Mill and a sprawling Tailings Pond. This landscape of high-output copper mining is interconnected by a specialized transportation network, including the Duval Mine Road and a Southern Pacific rail line that parallels the Santa Cruz River valley.

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Map Details

Date Portrayed1981
Date Published1981
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.5 x 26.7 inches

Editions of this 1981 Esperanza Mill Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain