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1979 Map of San Agustin

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

USGS Topo · Published 1979

About this map

The Papago Indian Reservation occupies the northern half of this desert landscape, where the international boundary between the United States and Mexico cuts diagonally across the terrain. This 1970s survey captures the remote character of Pima County, defined by the rise of Morena Mountain and the prominent Horse Peak. Water is a critical and scarce element here, represented by the San Agustin well situated near the base of the mountains.

A network of rugged paths, including a designated Jeep Trail, provides the primary means of navigation through the arid flats and up toward the Arizona-Sonora border. This map serves as a precise record of land use and topography in a sensitive border region where the land rises sharply toward the east, providing a clear view of the natural barriers that define this portion of the Southwestern frontier.