Walkerton Ontario. 1:50,000. Map Sheet 041A03, ed. 2, 1973
收藏资源简介:
This is a georeferenced raster image of a printed paper map of the Walkerton, Ontario region (Sheet No. 041A03), published in 1973. It is the second 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 1973 and the information on the map is current as of 1970. 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沃克顿(Walkerton)地区印刷纸质地图(图幅编号:041A03)的地理配准栅格影像(georeferenced raster image),该地图于1973年正式发布。本图为系列地图的第二版,完整呈现了该区域的自然与人文地理要素,涵盖地貌、高程点、行政界线、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,以及桥梁、建筑物、磨坊、输电线路、地表形态与地质构造等内容。该地图虽于1973年发布,但图面信息的现势性截止至1970年。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共同编制出版。请注意:影像拍摄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可能晚于其他要素。如需查阅详细的编制信息,请查看图幅左下角标注的内容。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伊斯特维公司(Eastview Corporation)共同完成。



