The collection consists of documents from the late nineteenth and early twentieth centuries related to mining in the area around Princeton, British Columbia. Many of the documents pertain to Alfred St. George Hamersley’s involvement with mining in this region, mostly notably with the Vermilion Forks Mining and Development Company. Records also relate to W.J. Waterman and Ernest Waterman’s activities in the mining industry of this region, particularly Ernest Waterman’s role as manager of the Vermillion Forks Mining and Development Company. Business of the Anglo-American Gold and Platinum Hydraulic Mining Company Limited Liability, the Princeton Water Power Company, and the London and Vancouver Finance and Development Company Limited is also documented.
Records are arranged into files that correspond to items in the collection. Document types include correspondence, sales of shares, land, and mineral rights, business and mining licenses, lease agreements, land registries, and Government of British Columbia receipts. A map of the region is also included.

File contains incoming and outgoing executive correspondence dated March 1974 to June 1977. Topics include membership, recycling on campus, relations with the Provincial association, daycare and maternity benefits, public relations, leaves of absence, requests for and letters of support from outside organizations and unions, letters of resignation and termination, job descriptions and evaluations, cutbacks at UBC, referendum procedure, dissatisfaction with local governance, negotiations and contracts with UBC, general and executive membership meetings, health care plans, strikes and demonstrations, strikebreakers and discipline procedure, educational workshops, union jurisdiction, retirement, surveys, rent and rent control, gender discrimination, by-laws and constitutions, office expenses, and pay equity. File also contains a copy of the October 5, 1973 "Dental Care Plan Service Contract" (and subsequent riders) between the Medical Services Association and the University of British Columbia.