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Headframe of an underground mine at the ASARCO Mission Complex near Tucson, Arizona. ASARCO (American Smelting and Refining Company) is a mining, smelting, and refining company based in Tucson, Arizona, which mines and processes primarily copper. The company has been a subsidiary of Grupo México since 1999.
In 1952, Asarco began open pit operations in the region, and in 1954 it founded a new town - named Silver Bell - four miles to the southeast of the original town site. [1] Silver Bell survived in its new form from 1952 through 1984. Mining operations at the Silver Bell Mine eventually ceased in 1984, and the town was disbanded.
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.
The Ray mine has one of the largest copper reserves in the United States, with proven and probable reserves of 835.7 million tonnes (822,500,000 long tons; 921,200,000 short tons) of ore grading 1.73% copper, as of December 31, 2018. [2] [3] [4] Copper from the Ray mine goes to the Hayden Smelter.
Chevron Products Company Issues New Case Study Highlighting Performance of Delo® Engine Oil at ASARCO Mine -- Delo 400 Multigrade SAE 15W-40 Delivers 21,900 Hours of Life in MTU 4000 Engine ...
The Calumet and Arizona Mining Company organized in March, 1901 and operated several large and profitable mines adjacent to the Copper Queen. By 1907, the C&A was the fourth-most productive copper mine in Arizona, and ran its own smelter in Douglas, Arizona. [5] Phelps Dodge started mining the Lavender open pit in the early 1950s. [4]
USA TODAY. After winter blast, heavy rains and melting snow could lead to major problems. Weather. USA TODAY. Schools closed, evacuations issued as California braces for powerful storm: Updates.
Asarco closed the Silver Bell Mine in 1921 to focus on operations elsewhere, and in late 1933 most of the buildings in Sasco were demolished, along with the railroad that served the town. The remains of several structures can still be visited today, including the Hotel Rockland, the Sasco Jail, and the smelter complex.