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 Welcome to the Steelworks Museum and the Colorado Fuel and Iron Company (CF&I) Archives, programs of the Bessemer Historical Society in Pueblo, Colorado. For 121 years CF&I was a driving force in the development of the West, with the largest steel mill west of the Mississippi River. Explore here CF&I’s rich history of steel production, iron and coal mining, geological exploration, labor relations, land and water use, immigration, and much more – all together telling the stories of the thousands of men and women who dedicated their lives to the industrialization of the American West. Please view the video below for a visual introduction to the museum and archives.