The minerals data source directory is a compilation of descriptive information on the availability, content, and location of minerals data in the federal government. It is intended to assist government personnel and the general public in locating and acquiring minerals information. Included in the directory are descriptions of data bases, publications, information systems, and information offices containing data pertaining to all aspects of mineral production, consumption, trade and related information. These mineral data sources include the federal agencies such as the Department of the Interior's Bureau of Mines and Geological Survey whose major mission is the collection and dissemination of mineral information. Also included are agencies such as the Departments of Agriculture, Commerce, Labor, State, and Treasury, and the Central Intelligence Agency, whose primary mission is the collection of data in nonmineral subject areas, but in which the mineral industry is a component.