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Collection Title:Cominco American, Inc., Douglas Mine and Concentrator Records
Repository:University of Montana, Mansfield Library, Archives and Special Collections
Summary:The Douglas Mine and Concentrator operated in Granite County, Montana from 1964-1968 under the ownership of the Montana Phosphate Products Company and later Cominco American, Inc. The records contain material related to the development, operation and dismantling of the mine and concentrator, as well as several maps and engineering drawings illustrating the Douglas Operation and other nearby mines owned by these same companies.

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