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1979 Map of Presumido Peak

Name: 1979 Topographic Map of Presumido Peak
Creator: U.S. Geological Survey
Published: 1984
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1984

About this map

The Papago Indian Reservation occupies the rugged western half of this 1970s landscape, where the Baboquivari Mountains and Pozo Verde Mountains form a dramatic barrier along the international border. In this arid frontier environment, the spatial pattern of life is defined by water management and ranching operations. Numerous livestock tanks, such as Tony Tank and Big Bertha Tank, are scattered throughout the desert flats to support remote outposts like Los Encinos Ranch and Sierra Vista Ranch.

Evidence of historical transit and regional infrastructure is visible in the presence of a Landing Strip near Aguirre Lake and the crossing at Presumido Pass. The border community of Sasabe anchors the southeastern corner, serving as a gateway between Arizona and Sonora. The natural drainage of the land is traced through extensive systems like Gallineta Wash and the Arroyo del Sasabe, which feed into the seasonal basins of Mormon Lake and the Compartidero Flats.