1963 Map of Diaz Peak

About this map

The Papago Indian Reservation and the Organ Pipe Cactus National Monument converge in this Pima County landscape, recorded during the early 1960s. The geography is defined by the prominent Ajo Range and the Sierra de Santa Rosa, which divide the terrain into distinct desert basins like the Pia Oik Valley and La Quituni Valley. Small settlements and ranching outposts such as Ali Chuk, Siovi Shuatak, and Gray Ranch are connected by a network of unimproved roads and trails, illustrating the remote habitation patterns of the Sonoran Desert. Vital water sources are scattered across the arid expanse, including Menagers Lake, Blankenship Well, and Adams Well. To the north, the terrain rises toward the Diablo Mts and Sweetwater Pass, while the southern boundary follows the international border between the United States and Mexico.