Copper-mining Projects Not Yet in Production
| Mine | County (Borough) and State | Operator | Type of Deposit | Status |
|---|---|---|---|---|
| Pebble | Lake and Peninsula Borough, Alaska | Pebble Mines Corp. | Porphyry copper | Planning |
| Rosemont | Pima County, Arizona | Augusta Resource Corp. | porphyry skarn | Plan of operations filed with US Forest Service |
| Resolution Copper | Pinal County, Arizona | Rio Tinto Group 55% and BHP Billiton 45% | Operation stalled pending proposed land swap with federal government | |
| Eagle Project | Marquette County, Michigan | Rio Tinto | State mining permit approved December 2007 | |
| Northmet | St. Louis County, Minnesota | Polymet Mining | copper-nickel-platinum | State and federal permits applied for an open-pit mine |
| Rocky-Beaver Lake | Beaver County, Utah | Copper King Mining | porphyry | Expected to start production in 2008 |
Read more about this topic: Lists Of Copper Mines In The United States
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