Sectional map no. 265: Peace Hills, west of fourth meridian : Alberta, Canada. -- [10th ed.]. July 1921.

This .shp file (lines) is the result of georeferencing and performing a raster to vector conversion using esri's ArcScan of Sectional map no. 265: Peace Hills, west of fourth meridian : Alberta, Canada. -- [10th ed.]. July 1921. This sheet is part of the 3-mile to 1-inch sectional maps of Western Canada. vectorization was undertaken to extract a measure of line work density in order to measure Cartographic Intactness. The original georeferenced scan, and world file of the original map, published by the Department of the Interior, is included in the study for reference purposes.该线要素类SHP文件系通过地理配准操作，并使用Esri公司的ArcScan软件，对加拿大阿尔伯塔省第四子午线以西的第265号《和平山》分区地图（第十版，1921年7月发布）完成栅格至矢量转换后得到的成果。该图件属于加拿大西部1英寸对应3英里比例尺分区地图集的组成部分。本次矢量化工作旨在提取线要素密度指标，以评估制图完整性（Cartographic Intactness）。本研究附带了由加拿大内政部发布的原始地理配准扫描件以及原地图的世界文件，以供参考。