Asarco celebrated its 100th anniversary of operations in Arizona, on Feb. 24. Ryan Randazzo of the Arizona Republic wrote up a nice short history of the company, concluding with a list of its current operations:
Ray and Hayden operations: A large open-pit mine, two concentrators, smelter and other facilities in Pinal and Gila counties. Produced 83.3 million pounds of copper cathode and 350.3 million pounds of copper anode in 2010. Spent $294.5 million on materials, energy, supplies, etc. that year. Employs about 1,400 people. [Right, Hayden stack. My photo]
Mission complex: Five open-pit mines in Pima County. Produced $183.9 million pounds of copper concentrates in 2010 and spent $118.4 million that year, including $35.4 million in royalties to the state and $23.4 million to the Tohono O'odham Nation. Employs about 600 people.
Silver Bell: Four open-pit mines in Pima County. Produced 46.3 million pounds of copper cathode in 2010 and spent $25 million that year. Employs about 155 people.