This is a georeferenced raster image of a printed paper map of the Ottawa- Gatineau District, Ontario region (Sheet No. 031G05-G12), published in 1939. It is the second edition in a series of maps, published between 1931 and 1953. Unlike most other maps in the 1:63,360 series, this map does not cover a single index tile; rather, it sits in the middle of two separate tiles.
The exact survey date for this map is not known. The survey was conducted using imagery taken by the Royal Canadian Air Force, as part of a national topographical survey originally commissioned by Department of Militia and Defence in 1904. This survey was completed by the Mapping Branch of the Department of Energy, Mines and Resources.
Hover over the map with your cursor to magnify an area, and scroll to zoom in and out