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2. Sierrita mine - Wikipedia

   en.wikipedia.org/wiki/Sierrita_Mine

   Year of acquisition. 2007. The Sierrita Mine is a large copper mine located in the Sierrita Mountains of Arizona, in southwestern United States. The mine is located in southern Pima County, southwest of Tucson and west of Green Valley - Sahuarita. Originally developed as an underground mine in 1907, the Sierrita open pit has been in operation ...

3. Resolution Copper - Wikipedia

   en.wikipedia.org/wiki/Resolution_copper

   Resolution Copper (RCM) is a joint venture owned by Rio Tinto and BHP formed to develop and operate an underground copper mine near Superior, Arizona, U.S. The project targets a deep-seated porphyry copper deposit located under the now inactive Magma Mine .

4. Rosemont Copper - Wikipedia

   en.wikipedia.org/wiki/Rosemont_Copper

   The Rosemont Copper property is located in Pima County, approximately 30 miles (48 km) southeast of Tucson. It straddles two historic mining districts: the Rosemont Mining District and the adjacent Helvetia Mining District. [7] [8] Copper became the focus of mining in the Santa Cruz Valley and elsewhere in Southern Arizona beginning in the late ...

5. Green Valley, Arizona - Wikipedia

   en.wikipedia.org/wiki/Green_Valley,_Arizona

   Green Valley is twenty miles (32 km) south of Tucson and 40 miles (64 km) north of Nogales, Sonora, Mexico. Surrounded by copper mines, and near the cycling, hiking and birding areas of the Santa Rita Mountains, Green Valley is an unincorporated retirement community composed of 59 Homeowner Associations.

6. Helvetia, Arizona - Wikipedia

   en.wikipedia.org/wiki/Helvetia,_Arizona

   Helvetia is a ghost town in Pima County, Arizona, United States that was settled in 1891 and abandoned in the early 1920s. Helvetia is an ancient name for Switzerland. [2] Today, only the Ray Mine and cemetery are visitable, as the rest of the town has been fenced off due to active mining operations.

7. Owner of Sun Valley recycling company arrested for receiving ...

   www.aol.com/news/owner-sun-valley-recycling...

   A 256 pound bronze plaque from the City of Burbank, with an estimated value of $10,000, was also recovered. Officers also found 3,366 pounds of copper and aluminum wire, estimated to be worth ...