Oro Blanco and its namesake ranch anchor this rugged Arizona landscape, where high-desert ranching and historic mineral interests shaped the terrain. Significant water features like the Oro Blanco Reservoir and dozens of springs—such as Yanks Spring and Grapevine Spring—support the isolated settlements and cattle operations of the region. The map reveals the intricate network of canyons and peaks along Cobre Ridge, including Cobre Mountain and Black Peak. Local history is rooted in the small communities and ranches like Old Glory, Cañoncito, and Tres Bellotas Ranch. Genealogists may find value in the location of El Oro Cem and Cemetery Tank, providing specific spatial evidence of the families and workers who once populated this borderlands district near Casa Piedra and Sentinel Peak.
52 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Arivaca
USGS Topo · 1:125,000
1921 · Old Glory
USGS Topo · 1:125,000
1939 · Tubac
USGS Topo · 1:62,500
1941 · Arivaca
USGS Topo · 1:62,500
1942 · Ruby
USGS Topo · 1:62,500
1942 · Oro Blanco
USGS Topo · 1:62,500
1943 · Arivaca
USGS Topo · 1:62,500
1943 · Old Glory
USGS Topo · 1:125,000
1943 · Tubac
USGS Topo · 1:62,500
1944 · Oro Blanco
USGS Topo · 1:62,500