Bolton (West) Ontario. 1:50,000. Map Sheet 030M13, ed. 4, 1968

This is a georeferenced raster image of a printed paper map of the Bolton, Ontario region (Sheet No. 030M13), published in 1968. It is the fourth 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 1964. 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顿（Bolton）地区1968年发布的印刷纸质地图（图幅编号：030M13）的地理参考栅格影像（georeferenced raster image）。该地图属于系列地图的第四版，图中涵盖自然与人文两类地物要素，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、水系（含湖泊、河流、溪流与急流）、桥梁、建筑、磨坊、输电线路、地表形态与地貌构造。该地图于1968年正式发布，但其所载信息的现势性截至1964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。请注意：影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可能晚于其他内容。如需获取详细的制图生产信息，请查阅单幅地图左下角的标注内容。原版地图由麦吉尔大学图书馆（McGill Libraries）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（University of Toronto Libraries）与Eastview Corporation共同完成。