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1948 Map of Mammoth

Name: 1948 Topographic Map of Mammoth
Creator: U.S. Geological Survey
Published: 1964
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1964

About this map

The San Pedro River valley serves as the central artery for this Arizona mining region, flanked by the high peaks of the Coronado National Forest. In the late 1940s, the landscape is defined by a dense concentration of mineral claims and established cattle operations. The town of Tiger sits as a focal point for extraction, surrounded by the Mammoth Mine, Mohawk Mine, and the emerging San Manuel Copper Mine. This era represents a significant transition as large-scale copper interests expanded alongside older, smaller operations like the Southern Belle Mine and Peak Mine.

Cattle ranching remains a dominant presence across the drainage basins of Peppersauce Wash and Cottonwood Wash. Named properties such as the American Flag Ranch, C O D Ranch, and Kahnally Ranch indicate a settled rural economy that preceded and persisted alongside the industrial mining boom. The map also traces the Pinal Co Pima Co boundary as it crosses the rugged terrain near Rice Pk and Signal Pk.