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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 since 1959 and is a copper and molybdenum mining complex, operating on a porphyry copper deposit with oxide, secondary sulfide, and primary sulfide ...
Sahuarita / s ɑː w ə ˈ r iː t ə / is a town in Pima County, Arizona, United States. Sahuarita is located south of the Tohono O'odham Nation and abuts the north end of Green Valley, 15 miles (24 km) south of Tucson. The 2022 population estimate was 35,638. [2]
The mine would create a much-needed economic boost to the region, directly employing 400 people for at least 19 years and support 1,700 indirect jobs. [72] Historically, mining jobs are among the highest paying positions in Arizona, and experienced workers in the copper industry in the southwest can earn an average of $59,000 or more per year. [73]
A large porphyry copper deposit has been identified near the old Helvetia mining district on the north flank of the range. The proposed Rosemont Copper mine would be an open pit operation located in the Santa Ritas about 2 miles (3 km) west of mile marker 44 on Arizona State Route 83.
Five of the more important core assay results follow: Hole #DW11-1D - 20.2 ounces silver per ton at a depth of 197-198 feet. Hole #DW11-1D - 21.8 ounces silver per ton at a depth of 198-200.5 feet.
ASARCO-Mission Mine, Freeport-McMoRan Sierrita Mine and Farmers Investment Co. (farming) are industrial scale water users. Residential water is provided by Farmers Water Company, Sahuarita Water Company, Las Quintas Serenas Water Company, Quail Creek Water Company, Community Water Company of Green Valley (a nonprofit member owned cooperative ...
Erie Street is famous for its vintage charm, but a key business faces closure.
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.