Bolkow Ontario. 1:50,000. Map Sheet 042B04, ed. 1, 1970

This is a georeferenced raster image of a printed paper map of the Bolkow, Ontario region (Sheet No. 042B04), published in 1970. 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 1970 and the information on the map is current as of 1962. 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博尔科（Bolkow）地区印刷纸质地图的地理配准栅格影像（georeferenced raster image），图幅编号为042B04，于1970年出版。该地图为系列地图的首版，完整呈现了该区域的自然与人文地物要素，涵盖地形起伏、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、磨坊、输电线路、地形与地表构造等内容。本地图于1970年正式出版，但图面所载信息的现势性截至1962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完成。请注意：影像获取与外业测量的周期可能跨越数年，部分地物细节的更新时间晚于其他要素。如需获取单幅地图的详细生产信息，请查阅图廓左下角标注的相关内容。原始纸质地图由麦吉尔大学图书馆联合Canadiana.org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提供技术支持。