Pre-emptors' Series (3A - 3Q)
Originally intended as a quick means of depicting for settlers the Crown lands available for pre-emption in the north-central portion of the province, the first pre-emptors' maps were rough in form and were substantially redrawn each year. Since the early sheets were designed for short-term use, they provided only basic planimetric information (horizontal features such as rivers and lakes, but not landforms) along with depictions of the boundaries and numbers of surveyed lots, land recording district boundaries, government reserves, and of course, lands open for pre-emption or in some cases, public auction.
Even the early sheets, however, often also provide relatively detailed information on the location of trails, roads, and railways, and the popularity of the series as well as the increasing availability of accurate survey information for the mapped areas soon prompted the Geographic Branch to improve the maps' appearance, accuracy and level of detail.
Thus, while the scale, area covered, and numbering of the early sheets varied from year to year, the format of the series was standardized by 1915, with most sheets being published at a scale of three miles to one inch. Certain sheets eventually depicted topography by means of contours, and provided some of the types of more detailed cultural information present in the Lands and Degree Series.
