
The copper smelting industry dominates the landscape of the Arizona Sonora United States Mexico Boundary Line during this 1913 survey. The city of Douglas stands as the regional hub, immediately adjacent to the massive industrial operations of the Copper Queen Smelter and the Calumet and Arizona Smelter. The grid of the city and neighboring Pirtleville contrasts with the broad expanse of the Sulphur Spring Valley to the north and west.
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3 editions found
1902 · Bisbee
USGS Topo · 1:62,500
1910 · Bisbee
USGS Topo · 1:62,500
1914 · Douglas
USGS Topo · 1:62,500
1916 · Pearce
USGS Topo · 1:125,000
1916 · Douglas
USGS Topo · 1:125,000
1917 · Chiricahua
USGS Topo · 1:125,000
1919 · Douglas
USGS Topo · 1:125,000
1919 · Perilla
USGS Topo · 1:125,000
1919 · Chiricahua
USGS Topo · 1:125,000
1922 · Swisshelm
USGS Topo · 1:62,500