The series consists of data acquisition and quality control records relating to base mapping (the process of mapping the provincial terrain – that is, land and water features). All base mapping was managed through the Terrain Resource Information Management (TRIM) program. TRIM provides the base data for the Province of British Columbia, operating under the Land Act. TRIM is a set of three-dimensional digital files that support development and management of land-related information.
The original TRIM program and mapping projects began in 1988 and were completed in 1996. Demand for more information on features such as roads, streams and forest openings led to the development of the TRIM II program. Mapping projects after December 1996 follow a new set of standards and are used to update and maintain the TRIM program.
The files consist of textual output of technical and background information for maps, rather than maps. These digital mapping group records include statistical summaries for map sheets, data checking and editing printouts, inspection check lists involving inspection and quality control checks which were carried out and indicated in the enclosed forms. Files include information on contractors. Dates given in the file list are sometimes approximate.
The creating office (the Surveys and Resource Mapping Branch, operations section) the most recent records was part of the Ministry of Environment, Lands and Parks. Previous creating ministries included the Ministry of Crown Lands and BC Ministry of Environment and Parks.
British Columbia. Surveys and Resource Mapping Branch