Alliston (East) Ontario. 1:50,000. Map Sheet 031D04, ed. 4, 1950

This is a georeferenced raster image of a printed paper map of the Alliston, Ontario region (Sheet No. 031D04), published in 1950. It is the fourth 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 1950. 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阿利斯顿地区（图幅号031D04）1950年出版的纸质印刷地图的地理参考栅格影像。该地图是系列地图的第四版，涵盖自然与人文两类地理要素，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、溪流与急流的水系、桥梁、建筑物、磨坊、输电线路、地形与地表构造。该地图于1950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机构编制。请注意：影像采集与外业测量的时间跨度可能长达数年，部分地图要素的更新时间可能晚于其他要素。详细的编制信息可查阅单幅地图左下角的标注内容。原始纸质地图由麦吉尔大学图书馆与Canadiana.org合作完成数字化扫描，地图的地理配准工作由多伦多大学图书馆与Eastview Corporation提供支持。