Round Lake Ontario. 1:50,000. Map Sheet 031F12, ed. 5, 1984

This is a georeferenced raster image of a printed paper map of the Round Lake, Ontario region (Sheet No. 031F12), published in 1984. It is the fifth 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 1984 and the information on the map is current as of 1981. 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朗德湖（Round Lake）区域印刷纸质地图（图幅编号：031F12）的地理配准栅格图像，于1984年正式发布。该地图属于系列地图的第五版，涵盖自然与人文两类地理要素，包括地形起伏、点高程、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、地表形态与地质构造。该地图虽于1984年发布，但图载信息的现势性截止至1981年。本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：图像采集与外业测量的周期可能长达数年，部分地图细节的更新时间存在先后差异。如需获取详细编制信息，请查阅图幅左下角标注的内容。原始地图由麦吉尔大学图书馆（McGill Libraries）与加拿大文献数字化平台（Canadiana.org）合作完成数字化扫描，地图的地理配准服务由多伦多大学图书馆（University of Toronto Libraries）与东景公司（Eastview Corporation）提供。