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1979 Map of Mildred Peak

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

USGS Topo · Published 1979

About this map

The Baboquivari Mountains dominate the western edge of this Arizona landscape, which transitions from high summits like Mildred Peak and Osobavi Peak into a complex network of desert washes. Water management is the primary architectural feature of this arid terrain, with numerous tanks and wells scattered across the basins, including Thomas Well, Black Tank, and Mormon Tank. These water sources supported early ranching and mining operations that define the area's human history.

Mineral exploration is evidenced by the Gold Bullion Mine and Jupiter Mine located in the canyons, while cattle ranching is centered around the Santa Margarita Ranch and the Las Moras Ranch. The presence of a small Cem near the Cemetery Tank and the remote Shaffer Camp suggests the isolated nature of life in the Altar Valley region during the mid-1970s. This survey records the persistent infrastructure of the Papago Indian Reservation borderlands before modern development.