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1996 Map of Blankenship Well

Name: 1996 Topographic Map of Blankenship Well
Creator: U.S. Geological Survey
Published: 2000
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2000

About this map

The international border divides this desert landscape, where the southern reaches of the Organ Pipe Cactus National Monument meet the state of Sonora. The terrain is characterized by the massive rising slopes of the Sierra de Santa Rosa and Sierra Nariz, with the ephemeral channel of the Sonoita cutting through the arid lowlands. Historical land use is evident in the presence of the Blankenship Ranch and the namesake Blankenship Well near the northern boundary.

On the Mexican side of the line, a network of small settlements and named locales like El Tomate (Campo Muñoz), Matavacas (Cajeme), and Siberia are connected by tracks such as the Camino de las Republicas. The presence of several international boundary markers, including Mon 165 and Mon 164, underscores the geopolitical significance of this remote corridor. The southern edge of the sheet reaches towards Unión Cubabi, capturing a specific moment in the cross-border ranching and settlement geography of the mid-to-late 20th century.