2007-04-10 16:44:40 · 6 answers · asked by teragothflame 1 in Arts & Humanities ➔ History
Copper, Arizona's premier industry until the 1950s, was first mined in Arizona at Ajo in 1854. The Planet mines opened on the banks of the Colorado River about the same time. By 1876 the Clifton-Morenci district in eastern Arizona had two large-scale mining operations. Copper mines in Globe and Jerome, both in central Arizona, also developed rapidly. The richest copper find of all occurred in 1877 in Bisbee, in southeastern Arizona near the Mexican border. By 1880, national and international advances in electrical engineering and the availability of the necessary investment capital had created a vigorous demand for copper that had not existed earlier. Arizona began to satisfy a rapidly growing copper market; the state still mines and processes more than half of the copper produced in the United States.
2007-04-10 20:06:47 · answer #1 · answered by Retired 7 · 0⤊ 0⤋
Arizona.
2007-04-10 23:52:10 · answer #2 · answered by staisil 7 · 0⤊ 0⤋
The US Geological Society claims as I do it is the state of Arizona.
2007-04-11 01:00:08 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
Utah
2007-04-10 23:53:30 · answer #4 · answered by Sheriff of Yahoo! 7 · 0⤊ 0⤋
look up Kennicot copper, in Utah
2007-04-10 23:54:14 · answer #5 · answered by Anonymous · 0⤊ 0⤋
That would be Arizona.
2007-04-10 23:50:30 · answer #6 · answered by Peter P 3 · 0⤊ 0⤋