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1981 Map of Samaniego Hills

Name: 1981 Topographic Map of Samaniego Hills
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

The Sasco Ruins and nearby Sasco Cem stand as significant markers of Arizona's industrial past, representing a former copper smelting community situated at the base of the Samaniego Hills. This 1981 record captures the remnants of that era, showing the Old Railroad Grade that once connected these desert outposts and the Sasco Road cutting through the landscape. The arid terrain is further defined by the Santa Cruz River and the engineered path of the Greene Canal in the north.

Water management and ranching history are visible through the presence of La Osa Ranch, Sasco Tank, and various wells scattered across the Pinal and Pima county line. The northern portion of the map includes the southern boundary of Picacho Peak State Park, while prominent peaks like Cerro Prieto and Pan Quemado anchor the topography. This survey provides a clear view of how irrigation, transportation, and mining infrastructure evolved across this desert floor.