
The high desert landscape of Pinal County is dominated by significant mining operations and dramatic geological formations as of this 1964 field check. The settlement of Ray sits at the edge of industrial activity, where the West Pit and a series of Leaching Ponds indicate the area's copper production. Further south, the Copper Butte Mine is positioned near the prominent Copper Butte, showing the distribution of mineral extraction across the quadrangle.
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3 editions found
1900 · Florence
USGS Topo · 1:125,000
1901 · Globe
USGS Topo · 1:62,500
1902 · Globe
USGS Topo · 1:62,500
1902 · Florence
USGS Topo · 1:125,000
1910 · Ray
USGS Topo · 1:62,500
1948 · Pinal Ranch
USGS Topo · 1:24,000
1948 · Superior
USGS Topo · 1:62,500
1948 · Superior
USGS Topo · 1:24,000
1948 · Picketpost Mtn
USGS Topo · 1:24,000
1949 · Pinal Ranch
USGS Topo · 1:24,000