Sarnia Ontario. 1:50,000. Map Sheet 040J16, ed. 6, 1995

This is a georeferenced raster image of a printed paper map of the Sarnia, Ontario / United States region (Sheet No. 040J16), published in 1995. It is the sixth 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 1995 and the information on the map is current as of 1990. 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1995年出版的安大略省萨尼亚/美国地区纸质地图（图幅号：040J16）的地理参考栅格影像（georeferenced raster image）。该地图为系列地图的第六版，涵盖自然与人文地理要素，包括地形起伏、高程点、行政边界、次级与支路道路、铁路、步道、林区、含湖泊、河流、溪流与急流在内的水系，以及桥梁、建筑、磨坊、输电线路、地形与地貌形态。本地图虽于1995年正式出版，但所载地理信息的现势性截止至1990年。该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编制出版。请注意：影像采集与外业测量的周期可能跨越数年，部分地理细节的更新时间可能晚于其他要素。详细的编制生产信息可查阅单幅地图的左下角标注。原始纸质地图由麦吉尔大学图书馆与Canadiana.org合作完成数字化扫描，地图的地理配准（georeferencing）工作由多伦多大学图书馆与Eastview Corporation提供支持。