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The '''Cordero Rojo Mine''' is a coal mining complex located in the state of [[Wyoming]] in the United States, in the coal-rich [[Powder River Basin]]. The mine is of open pit mining construction and employs several dragline excavators. Two coal-processing facilities are located on-site, and crushed coal is shipped by rail to electric utility customers in the south and west of the United States.<ref name="MT">{{cite web|url=http://www.mining-technology.com/projects/cordero/|title=Cordero Rojo Coal Mine, WY, USA|work=mining-technology.com|publisher=SPG Media Limited|accessdate=2009-04-14}}</ref><ref name="RTEA">{{cite web|url=http://www.rtea.com/pages/corderorojo.aspx|title=Cordero Rojo Mine|work=Rio Tinto Energy America website|publisher=Rio Tinto Group|accessdate=2009-04-14}}</ref> The mine employs between 430 and<ref name="MT"/> and 540<ref name="RTEA"/> people.
The mining complex is wholly owned by the giant mining [[Cloud Peak Energy]], a company in which [[Rio Tinto ]] has a 48.3% stake.<ref>Rio Tinto, [http://www.riotinto.com/annualreport2009/production/group_mines/energy.html 2009 Annual Report: Production & reserves: Groupmines: Energy"]], thru its Rio Tinto website, 2010.</ref> (Cloud Peak Energy was spun-off in 2008 from Rio Tinto's wholly owned subsidiary [[Rio Tinto Energy America]]. It The Cordero Rojo Mine was formed in 1997 from the consolidation of two previously existing mines, the Cordero mine (purchased by Rio Tinto in 1993) and the Caballo Rojo mine (purchased in 1997).<ref name="MT"/> The mine produced between 34 and 36 million tons of coal per year in the years 2004 to 2006,<ref name="MT"/> and over 40 million tons of coal in 2007, making the Cordero Rojo that year's third-highest producer of coal in the United States.<ref name="EIA">{{cite web|url=http://www.eia.doe.gov/cneaf/coal/page/acr/table9.html|title=Major U.S. Coal Mines, 2007|date=September 2008|publisher=[[Energy Information Administration]] of the [[Department of Energy]]|accessdate=2009-04-14}}</ref>
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