Uranium mining in the USA today is undertaken by few companies on a relatively small scale. Uranium exploration is undertaken by many companies, often going over areas that were mined in the 1950-80s. Uranium production from one mill (White Mesa, Utah) and five ISL operations totalled 1,583 tU (1,866 t U3O8) in 2006, 1,748 tU (2,061 t U3O8) in 2007, and 1,503 tU (1,774 t U3O8) in 2008.1
In 2008, Rosita became a sixth ISL production site before being shut down. Cameco's US subsidiary Power Resources Inc operates the Smith Ranch-Highland mine in Wyoming's Powder River basin and the Crow Butte mine in Nebraska, both of them ISL operations, and producing 500 tonnes U between them in the first half of 2009 from total reserves of 12,000 tU (15,000 t U3O8). The US company is now known as Cameco Resources and is aiming to increase production from these mines and adjacent properties including Reynolds Ranch to 1,770 tU/y by 2011.
Original updated URL: http://www.world-nuclear.org/information-library/country-profiles/countries-t-z/appendices/us-nuclear-fuel-cycle-appendix-1-us-uranium-mining.aspx
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