The Black Pine Silver Mines, Inc. was a silver mining company in the Philipsburg, Montana, area. Records (1924, 1932-1942, 1946) include general correspondence, financial records, court papers, legal documents, and miscellany. Also included are records from the predecessor company, the Black Pine Mines, Inc., and a smaller subgroup for Combination Silver Mines, Inc., which bought the Black Pine property in 1936. [Maps and blueprints transferred to Library Map Collection.]

The Combination Mining and Milling Company was a Black Pine, Montana, silver mining company. This collection (1888-1899) consists of general correspondence; payroll; supply, and miscellaneous financial records; manager's monthly reports; and miscellany.