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1979 Map of Cumero Mtn

Name: 1979 Topographic Map of Cumero Mtn
Creator: U.S. Geological Survey
Published: 1992
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1992

About this map

The United States Mexico border defines the southern extent of this 1970s landscape, where the San Luis Mountains rise above a network of arid washes and remote ranching infrastructure. Land management is divided by the Coronado National Forest boundary, which encompasses prominent peaks like Cumero Mtn and Lesna Peak. The scarcity of water in this Pima County desert is evident in the numerous man-made features designed to capture seasonal runoff, including Fresnal Dam, Cantina Reservoir, and uniquely named catchments such as Marijuana Tank and Rock Tank.

Local history is centered on the Garcia Ranch and its associated Cem, reflecting the small-scale agricultural and ranching efforts that persisted in these borderlands. Evidence of early industry and habitation appears in the presence of the Sandwash Mill, scattered Ruins, and a Prospect near Cerro del Fresnal. These features, connected by a network of 4wd tracks and washes like Coches Wash, suggest a landscape defined by seasonal movement and the continuous search for water at sites like Coches Windmill.