Grassy Lake Alberta. 1:50,000. Map Sheet 072E13, ed. 1, 1968
收藏资源简介:
This is a georeferenced raster image of a printed paper map of the Grassy Lake, Alberta region (Sheet No. 072E13), published in 1968. It is the first 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 1968 and the information on the map is current as of 1965. 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.
本数据集为阿尔伯塔省(Alberta)格拉斯湖(Grassy Lake)区域印刷纸质地图的地理参考栅格影像,图幅编号为072E13,于1968年发布。该地图为系列地图的第一版,涵盖各类自然与人工地物,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、建筑物、磨坊、输电线路、地表形态与地质构造。本地图虽于1968年发布,但所载信息的现势性截至1965年。该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。请注意:影像采集与外业测量的时间跨度可达数年,部分地物细节的更新时间可能晚于其他内容。如需获取详细的编制信息,请查阅单幅地图的左下角标注内容。原始地图由麦吉尔大学图书馆与Canadiana.org合作完成数字化扫描,地图的地理参考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。



