Mountain Ash Lake Ontario. 1:50,000. Map Sheet 041O03, ed. 3, 1991

This is a georeferenced raster image of a printed paper map of the Mountain Ash Lake, Ontario region (Sheet No. 041O03), published in 1991. 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 1991. 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芒特阿什湖（Mountain Ash Lake）区域纸质印刷地图的地理配准（georeferenced）栅格影像，图幅编号为041O03，于1991年发布。该地图为系列地图的第三版，涵盖各类自然与人工地物，包括地貌、高程点、行政边界、次要道路与支路、铁路、步道、林区、涵盖湖泊、河流、溪流与急流的水系，以及桥梁、建筑物、磨坊、输电线路、地形与地表构造。 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合作编制。 请注意：图像采集与外业测量的时间跨度可达数年，部分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，请查阅单幅地图左下角标注的内容。 原始地图由麦吉尔大学图书馆（McGill Libraries）与加拿大人在线（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（University of Toronto Libraries）与伊斯特维公司（Eastview Corporation）共同完成。