1911 Map of Winkelman

About this map

Winkelman and the confluence of the Gila River and San Pedro River serve as the focal point for this 1911 survey of the Pinal and Pima County borderlands. The landscape is defined by the extraction economy of the early twentieth century, with a concentration of industrial activity in the southern reaches. Notable operations include the Mammoth Mine, Ford Mine, and Mohawk Mine clustered near the settlement of Mammoth, while further south, the Southern Belle Mine and Bonito Mine sit within the Coronado National Forest. The region’s social structure is visible through its rural education network, featuring the Finch School, Aravaipa School, and Clark School. Evidence of the area's transition from open range to established ranching persists in the many named holdings, such as American Flag Ranch, Cottonwood Ranch, and Youngs Ranch, all connected by the historic Winkelman Road.