The collection consists of general reports, annual reports and financial statements of the Park City Consolidated Mines Company. Also included is a booklet of maps and financial information regarding the Ontario Silver Mining Company. The Park City Consolidated Mines Company was a gold, silver, lead, and zinc mine at Park City, Utah.
The Silver King Coalition Mines Company records (1900-1952) consist of business records including correspondence, financial records, minute books, securities documents, ore reports, geological surveys, and legal files. Included are records of, and information on, the management, financial, and scientific activities of various mining operations, some of which were absorbed into the Silver King Coalition Mines Co. With one exception, all of these mining companies operated in and around Park City, Utah. Silver King Coalition Mines was incorporated in the late 19th century as a coalition of competitors in the silver mining industry in and around Park City, Utah.