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1979 Map of San Pedro

Name: 1979 Topographic Map of San Pedro
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

The Roskruge Mountains dominate this 1970s landscape within the Papago Indian Reservation, where the high desert terrain is defined by prominent peaks and vital water sources. Sharp Peak and Martina Mountain serve as primary landmarks, while the Indian Reservation Boundary cuts across the eastern portion of the sheet. Settlement is sparse, centered on the village of San Pedro and established cattle operations like the U-Diamond Ranch and Coleman Ranch.

Resource management in this arid environment is evidenced by a network of engineered water points, including the Reservation Tank, Middle Tank, and several deep wells such as Townsend Well and Davidson Well. The drainage patterns of Mendoza Wash and Viopuli Wash dictate the local geography, providing a clear picture of how ranching and indigenous settlement adapted to the Pima County desert before the close of the twentieth century.