
The San Pedro River corridor serves as the primary artery of development in this 1920s reconnaissance survey, where irrigation and rail infrastructure supported early Cochise County ranching and industry. The settlement of St David and the nearby Apache Powder Co plant signify the area's transition toward industrial manufacturing, while the expansive San Juan de las Boquillas y Nogales land grant reflects the region's Spanish and Mexican heritage.
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This is the sole edition of this map. No revisions or reprints were ever made.