Sub-sub-series consists of maps created or maintained by Statistics Canada for work related to the 1991 census. The maps in the sub-sub-series may have been printed from a GIS, possibly ArcInfo.
The 1991 Census maps are divided into 5 series:
Series 1 (G-13) are large urban Enumeration area (EA) reference maps, covering all 25 Census metropolitan areas (CMAs) and the 18 Census agglomerations (CAs) that are in the Census tract (CT) Program. Census metropolitan areas are one or more adjacent municipalities centred on a population centre (known as the core) with a total population of at least 100,000 of which 50,000 or more must live in the core. A Census agglomeration is one or more adjacent municipalities centred on a core of at least 10,000. Generally there is one map per census tract which shows EA boundaries and codes on a background of detailed street networks and other visible features. The maps also show boundaries for CMAs, CAs, CTs, Census subdivisions (CSDs), and Federal electoral districts (FED). A FED is an area represented by a member of the House of Commons, established based on population counts from each decennial census as determined by the Chief Electoral Officer of Canada and electoral boundaries commissions. The boundaries, name, and population of each FED are included in a representation order (RO); names of FEDs may change at any time through an Act of Parliament.
Series 2 (G-14) are small urban Enumeration area reference maps covering smaller urban municipalities (census subdivisions) not in the Census tract programme. The maps depict EA boundaries and codes. Federal electoral districts are also shown on these maps. The size and the scale of maps vary, depending on the area covered.
Series 3 (G-12) are rural Enumeration area reference maps depicting enumeration area boundaries and codes in rural areas of Canada. Also shown are boundaries for census subdivisions, census divisions (CDs), federal electoral districts, census metropolitan areas and tracted census agglomerations. These maps, based on Canada's national topographic map series, are at a scale of 1:50,000 or 1:2500,000 for the ten provinces and at a scale of 1:1,000,000 for Yukon Teriitory and 1:4,000,000 for the Northwest territories.
Reference maps shows the location of the geographic areas for which census data are tabulated and disseminated. The maps display the boundaries, names and codes of standard geographic areas, as well as major cultural and physical features, such as roads, railroads, coastlines, rivers and lakes.
Compilation maps are a working series which are annotated to show changes in municipal boundaries from one census to another. Changes will be reflected in the most recent reference map (i.e. 1991 for the period 1986-1991).
Maps in all the above series are available in digital format (as .tiff scans created by Statistics Canada); see linked lower-level descriptions for details. Sub-sub-series also consists of an estimated 3920 maps in manuscript/printed format, in each of the above map series with the exception of the reference maps, and that likely correspond to the digitized maps in electronic format.
The Final 1991 Reference Maps (G91-12, G91-13, G91-14) were created as follows: mylar copies of the final 1986 Reference maps (themselves originally created from source NRCan mylar maps 1:50000) were used, in conjunction with 1986 EA maps, Road update maps, and geographic area updates, to update the maps for the 1991 census and create the final 1991 Reference Maps. Those reference maps were kept for archiving, and were also used to produce 1991 EA maps. The final 1991 Reference Maps then served as the source map for a reiteration of the process for the creation of the final 1996 reference maps.
