Scope and Contents From the Series: This series includes cash books, costs sheets, inventories, journals, ledgers, stock records, store reports, pay records, and other financial reports and data from the Copper Range Company and its subsidiaries.The cost sheets (monthly and annual) are particularly valuable as an overview of the activities of each company.Note that Copper Range Railroad Company, Copper Range Motor Bus Company, and Copper Range Foundation financial records can be found in Series IX:...

Scope and Contents From the Sub-Series:

This subseries contains correspondence, land records, financial records, and meeting records from the Hulbert Mining Company and some of its affiliates (mostly from the Secretary-Treasurer's Office). This includes material relating to E. J. Hulbert's discovery of the Calumet Conglomerate and the subsequent organization of the Calumet and Hecla Mining Companies.