Shape File Index to the Sectional Maps, 1917 [of Western Canada, new style, 1905-1955].

This .shp file was derived from a georeferenced scan of the Index to the Sectional Maps, 1917 [of Western Canada, new style, 1905-1955], published by the Department of the Interior February 1, 1917. The original georeferenced scan and world file is included in the study for reference purposes.

本形状文件（Shapefile，.shp）源自1917年2月1日由内政部（Department of the Interior）发布的《1917年分区地图索引（加拿大西部，1905-1955年新式版）》的地理配准扫描件。本次研究中附带了原始地理配准扫描件与世界文件（World File），以供参考。