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1979 Map of Las Guijas

Name: 1979 Topographic Map of Las Guijas
Creator: U.S. Geological Survey
Published: 1979
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1979

About this map

The Las Guijas Mountains dominate this arid landscape, where desert water management is the primary marker of human presence. Dozens of named reservoirs and wells, such as Martinez Well, Tiohierro Tank, and Lindberg Tank, highlight the critical infrastructure required for ranching and mining in Pima County. The map documents the Las Guijas Mine and the nearby Las Guijas (Site), alongside family-named locales like Figueroa Ranch, Shaffer, and Secundino.

Drainage patterns define the topography, with a complex network of seasonal channels including Arivaca Wash and Thomas Canyon Wash feeding toward Arivaca Creek. The presence of numerous Drill Holes and Prospects scattered near the primary mine site illustrates the ongoing mineral exploration of the late 1970s. This survey records the sparse but deliberate footprint of ranching and extraction before further modern development reached this portion of the Arizona borderlands.