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Key Facts

Commodity Thermal Coal
Location Colorado, USA
Nearest Landmark:
Latitude: 40° 17' (North)
Longitude: 107° 47' (West)


Satellite Image

Western Fuels Colorado LLC


Coal - 4mtpa capacity

Deposit Type Sedimentary coal deposit
Reserves & Resources

Coal - 15mt proven and probable, Dec 31, 2010

Mine Type Surface
Mining Method Open pit
Processing Method  
Mine Life  To 2017
Mining Equipment  Truck and shovel (draglines)
Processing equipment  
Employees  320 (2009)
Contact Information

5731 State Highway 13
Meeker, CO
USA 81641
Phone:+1 (970) 824 1500


Updated: May 14, 2012


Colowyo Coal Company produces thermal coal in northwest Colorado, USA.

On December 1, 2011 Rio Tinto announced that it has completed the divestment of its Colowyo Mine, a thermal coal mine located in western Colorado, to Western Fuels-Colorado LLC. The transaction represents the completion of Rio Tinto's divestment of all US thermal coal mines previously held by its wholly-owned subsidiary, Rio Tinto Energy America Inc. 


The Colowyo mine is located in the northwest section of the Uinta Basin, between Craig and Meeker, Colorado, in Moffat County. 

Geology and Mineralization

Eight different coal seams are mined sequentially at the site. The seams range from 18 inches to 14 feet thick. The typical average quality of coal rates at 10,325 average Btu subbituminous thermal coal.

Mining & Operation

Conventional truck and shovel coal mining operation.


Coal is crushed to specifications then washed and stockpiled for delivery. Coal mined from Colowyo is sold to utilities in the western half of the United States, primarily into Colorado, Texas, Arkansas and Arizona.

Environment & Community

Colowyo coal mine was owned by Rio Tinto and sold in December 2011. Respect for the environment was central to Rio Tinto's approach to sustainable development. Wherever possible Rio Tinto prevented, or otherwise minimized, mitigated and remediated, harmful effects of the Group's operations on the environment. 

In line with Rio Tinto's Environment policy and associated standards, Rio Tinto have developed and implemented a number of practical programmes covering the management of air quality, ecosystems services, biodiversity, climate change,energy, land, water, waste, and closure. These programmes include input from our local communities as well as from experts in these fields.


Colowyo Staff Access

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  • - Browse Candidates
  • Training & Professional Development

  • - Colowyo Campus
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  • - General Campus
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Colowyo Suppliers

Colowyo Suppliers

ABB - Mining Energy Conservation, Automation, Drives

Featured Suppliers

Marcotte Mining Machinery Services Inc. Multicrete Systems Inc.

Other Suppliers

DMC Mining Services
Titan Process Equipment Ltd.

Suppliers- If your company is a supplier to Colowyo and would like to be included in the supplier listings above then please contact us at minesupplier@infomine.com.

Viewers- If you have more recent, or more accurate, information on Colowyo then please contact us at mineupdate@infomine.com.

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