The following lists of copper mines in the United States:
Leading copper-producing mines
Leading copper-producing mines in the U.S., 2018–2021, in order of output: The mines on this list account for more than 99% of U.S. mine copper production.
Copper-mining projects not yet in production
| Mine | County (Borough) and State | Operator | Type of Deposit | Status |
|---|---|---|---|---|
| Pebble | Lake and Peninsula Borough, Alaska 59°53′50″N 155°17′43″W / 59.89722°N 155.29528°W / 59.89722; -155.29528 |
Northern Dynasty Minerals | Porphyry copper-gold-molybdenum | Pre-feasibility |
| Rosemont | Pima County, Arizona 31°51′05″N 110°45′26″W / 31.85139°N 110.75722°W / 31.85139; -110.75722 |
Hudbay Minerals | Porphyry skarn | Permitting |
| Resolution | Pinal County, Arizona 33°18′11″N 111°06′00″W / 33.3031115°N 111.1001195°W / 33.3031115; -111.1001195 |
Rio Tinto 55%, BHP 45% | Porphyry copper deposit beneath the inactive Magma Mine | Permitted |
| Back Forty Mine | Menominee County, Michigan |
Gold Resource Corp. | Volcanogenic massive sulfide | |
| Northmet | St. Louis County, Minnesota | Polymet Mining | Copper-nickel-PGM deposit in disseminated and massive sulfides in layered mafic intrusion | All state and federal permits issued for an open pit mine |
| Black Butte | Meagher County, Montana | Sandfire Resources America | SEDEX copper-cobalt-silver | Permitting |
Inactive or defunct copper mines
There are hundreds of inactive or defunct copper mines in the United States. The list below includes only those with Misplaced Pages articles.
See also
References
- Brininstool, Mark and Flanagan, Daniel M. 2015 Minerals Yearbook: Copper - U.S. Geological Survey - U.S. Department of the Interior - October 2017 - (Adobe Acrobat *.PDF document)
- ^ "Freeport-McMoRan 2021 Form 10-K". Freeport-McMoRan Inc. Phoenix, AZ. 15 February 2022. Retrieved 31 July 2022.
- "2021 Annual Report" (PDF). Rio Tinto. Melbourne. p. 56. Retrieved 31 July 2022.
- "Capstone Mining Corp. 2020 Annual Report" (PDF). Capstone Mining. p. 15. Retrieved 31 July 2022.
- ^ "Informe Anual 2018" (PDF). Grupo México (in Spanish). Mexico City. 31 March 2019. p. 166. Retrieved 15 November 2019.
- ^ Perry, Rick; Visher, Mike (2019). "Major Mines of Nevada 2018" (pdf). Nevada Division of Minerals. Nevada Bureau of Mines and Geology. Retrieved 22 October 2019.
- "Reporter's notebook: Visiting depths of Butte's Continental Pit". Montana Standard. Butte, Montana. 31 May 2015. Retrieved 27 February 2020.
- "Eagle". Lundin Mining. Retrieved 15 November 2019.
- "Operations Overview". Lisbon Valley Mining Company. Retrieved 15 November 2019.
- "The Management Board's Report on the activities of KGHM Polska Miedź S.A. and of the KGHM Polska Miedź S.A. Group in 2018" (PDF). Lubin, Poland: KGMH Polska Miedź. March 2019. p. 13. Retrieved 15 November 2019.
- Schmidt, Donna (6 January 2020). "Pumpkin Hollow carving begins". Mining Magazine. London. Retrieved 27 February 2020.
- "Condensed consolidated interim financial statements for the three and nine months ended September 30, 2019 and 2018" (PDF). Vancouver, BC: Northern Dynasty Minerals. 2019. Retrieved 27 February 2020.
- "Hudbay Announces Fourth Quarter and Full Year 2019 Results and Provides Annual Guidance" (PDF). Toronto, Canada: Hudbay Minerals. 20 February 2020. p. 15. Retrieved 27 February 2020.
- Klemetti, Erik (13 August 2019). "North America is About to Get Its Largest Copper Mine". Discover Magazine. Waukesha, Wisconsin. Retrieved 27 February 2020.
- Black, Zachary J. (6 March 2018). "NorthMet Project - Form NI 43-101F1 Technical Report" (PDF). Polymet Mining, Inc. Retrieved 15 November 2019.
- Thompson, Brad (29 January 2020). "Sandfire anxiously awaits news on US copper project". Australian Financial Review. Sydney. Retrieved 27 February 2020.