Perch (East) Ontario. 1:50,000. Map Sheet 040O01, ed. 3, 1957

This is a georeferenced raster image of a printed paper map of the Perch, Ontario region (Sheet No. 040O01), published in 1957. It is the third edition in a series of maps, which show both natural and man-made features such as relief, spot heights, administrative boundaries, secondary and side roads, railways, trails, wooded areas, waterways including lakes, rivers, streams and rapids, bridges, buildings, mills, power lines, terrain, and land formations. This map was published in 1957. Maps were produced by Natural Resources Canada (NRCan) and it's preceding agencies, in partnership with other government agencies. Please note: image / survey capture dates can span several years, and some details may have been updated later than others. Please consult individual map sheets for detailed production information, which can be found in the bottom left hand corner. Original maps were digitally scanned by McGill Libraries in partnership with Canadiana.org, and georeferencing for the maps was provided by the University of Toronto Libraries and Eastview Corporation.

本数据集为安大略省珀奇地区印刷纸质地图（图幅号：040O01）的地理参考栅格影像（georeferenced raster image），该地图于1957年发布。本图为系列地图的第三版，完整呈现了区域内的自然与人工地物，包括地形起伏、高程点、行政边界、次要道路与支路、铁路、步道、林区、包含湖泊、河流、溪流与急流在内的水系、桥梁、建筑、磨坊、输电线路、地形及地貌构造。该地图于1957年正式出版。本系列地图由加拿大自然资源部（Natural Resources Canada, NRCan）及其前身机构联合其他政府部门编制。请注意：影像采集与外业测量的周期可能跨越数年，部分地图细节的更新时间存在先后差异。如需获取详细的编制信息，请查阅单幅图幅左下角标注的内容。原版地图由麦吉尔大学图书馆与Canadiana.org合作完成数字化扫描，地图的地理配准（georeferencing）工作由多伦多大学图书馆与Eastview Corporation共同完成。