
The borderlands of southern Arizona and Sonora, Mexico, are defined here by the mining activity and ranching outposts within the Coronado National Forest. At the heart of the district lies Ruby, a prominent settlement surrounded by the high summits of the Atacosa Mountains and Pajarito Peak. The landscape is etched with steep drainage systems like Sycamore Canyon and California Gulch, where several claims such as the Dos Amigos Mine and Morning Mine signify the region's mineral interests.
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3 editions found
1904 · Patagonia
USGS Topo · 1:125,000
1905 · Patagonia
USGS Topo · 1:125,000
1905 · Nogales
USGS Topo · 1:125,000
1920 · Arivaca
USGS Topo · 1:125,000
1921 · Old Glory
USGS Topo · 1:125,000
1922 · Agus Caliente
USGS Topo · 1:62,500
1933 · Calabasas
USGS Topo · 1:62,500
1939 · Tubac
USGS Topo · 1:62,500
1941 · Arivaca
USGS Topo · 1:62,500
1942 · Oro Blanco
USGS Topo · 1:62,500