The Property File is a large online collection of generally unique documents acquired by the Ministry of Energy, Mines and Petroleum Resources over the last 100 years. This project places approximately 100,000 documents online for access by researchers, geoscientists and the public. Property File contains unpublished reports, theses and papers, filed notes, company prospectuses and pamphlets, historical information, geology, geochemistry, geophysics and drill information, claim maps, sketches of workings and photographs. Property File also contains general information on each NTS area, the National Mineral Inventory cards, topographic maps and some work histories. Research material is indexed and cross referenced in the MINFILE database.