The fonds consists of materials generated in the exploration and operating process of Blackdome Exploration Ltd., and the Blackdome Mining Corporation. This includes: maps, mine plans and technical drawings, slides, photographs, geological reports, proposals, correspondence, environmental impact statements, budgets, a Masters degree thesis from the University of Alberta, exploration notes, operations reports, operating costs, geological interpretations, memorandums, recommendations, evaluations, production summaries, economic performance reports, personnel files, accounting charts, feasibility studies, annual and quarterly reports, news releases, press clippings, diamond drill hole logs and summaries, and several artifacts.

The fonds consists of regular minutes (1919-1970), conciliation reports from various unions (1943-1974), correspondence (1953-1975) and office files from Southern Interior shops (1957-1980). The fonds also includes IAM Grand Lodge correspondence (1953-1973, incomplete), receipts (1919-1961) and records for Lodges 131 (1943-1961), 109 (1949- 1966) and 867 (1951-1964). Major correspondents include companies such as the Schlage Lock Company, Brunette Machine Works, and Bitco Sales and Service as well as the Metal Industries Association. The fonds also includes agreements, negotiations, and correspondence with many companies whose major customers are part of the mining, forestry and fishing sectors of the British Columbia economy.

The fonds consists of correspondence and subject files relating to mining developments in B.C. including Lake Cinch Mines, Headley Mascot Gold Mines, Britannia Beach, Eldorado Mining and Refining Company and various other developments.