Cordero Rojo Mine

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Cordero Rojo Mine is a surface coal mine, operated by Navajo Transitional Energy Company, owned by the Navajo Nation, producing 12.6 million short tons per annum, near Gillette, Wyoming, United States.


The map below shows the location of the mine, near Gillette, in Campbell county, Wyoming.

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Mine Data

  • MSHA ID: 4800992
  • Owner: Navajo Transitional Energy Company
  • Parent company: Navajo Nation
  • Location: Wyoming, near Gillette
  • GPS coordinates: 44.11, -105.36 [1]
  • Production: 12,609,413 short tons (2018)
  • Mineable Reserve: 190.1 million tons permitted [2]
  • Coal Type: Subbituminous
  • Mining Method: Surface
  • Mine Status: Operating
  • Average No. of Employees: 589
  • Start Year: 1997 (merger of Caballo Rojo and Cordero mines)


The Cordero Rojo Mine is a coal mining complex located in the state of Wyoming in the United States, in the Powder River Basin. The mine is an open pit mine 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.[3][4] The mine employs between 430 and[3] and 540[4] people.

The mining complex is wholly owned by Cloud Peak Energy, a company in which Rio Tinto has a 48.3% stake.[5] (Cloud Peak Energy was spun-off in 2008 from Rio Tinto's wholly owned subsidiary Rio Tinto Energy America.

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).[3] The mine produced between 34 and 36 million tons of coal per year in the years 2004 to 2006,[3] 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.[6]

In May 2012 it was announced that Cloud Peak Energy was to face state and federal violations after blasters earlier in the month ignited an explosion that was more than three times its intended size.[7]

In August 2015, Cloud Peak completed a land transaction that added 95 million tons to the Cordero Rojo mine's reserves.[8]

Cloud Peak Energy to ship more Powder River Basin coal to Asia

In June, 2011 Cloud Peak Energy signed a 10-year deal to ship basin coal to Asia from a port on Canada’s Pacific Coast. Cloud Peak Energy Inc. signed the deal with Westshore Terminals to ship coal through its Westshore Terminal in Vancouver, British Columbia. The company shipped 3.3 million tons of coal through the terminal to Asian customers in 2010.[9] Cloud Energy operates the Antelope Coal Mine, Cordero Rojo Mine, Spring Creek Mine and Decker Mine in the Powder River Basin.

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  1. Mining Company & Property Database
  2. John T. Boyd Company,Powder River Basin Coal Resource Cost Study, September 2011
  3. 3.0 3.1 3.2 3.3 "Cordero Rojo Coal Mine, WY, USA". SPG Media Limited. Retrieved 2009-04-14.
  4. 4.0 4.1 "Cordero Rojo Mine". Rio Tinto Energy America website. Rio Tinto Group. Retrieved 2009-04-14.
  5. Rio Tinto, 2009 Annual Report: Production & reserves: Group mines: Energy", Rio Tinto website, 2010.
  6. "Major U.S. Coal Mines, 2007". Energy Information Administration of the Department of Energy. September 2008. Retrieved 2009-04-14.
  7. "Mine faces state, federal fines for massive blast"] Jeremy Pelzer Star-Tribune, May 22, 2012.
  8. Cloud Peak Energy’s Cordero Rojo Mine Enters Land Transaction and Gains Surface Access to an Estimated 95 Million Tons of Additional Coal, Cloud Peak Energy press release, 24 Aug. 2015.
  9. "Cloud Peak Energy to send more Powder River Basin coal to Asia" Jeremy Fugleberg, Star-Tribune, June 15, 2011.

External links

Wikipedia also has an article on Cordero Rojo Mine. This article may use content from the Wikipedia article under the terms of the GFDL.