Rock Island Lake Alberta. 1:50,000. Map Sheet 083P06, ed. 1, 1975

This is a georeferenced raster image of a printed paper map of the Rock Island Lake, Alberta region (Sheet No. 083P06), published in 1975. 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 1975 and the information on the map is current as of 1960. 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.

本数据集为阿尔伯塔省洛克岛湖（Rock Island Lake）区域印刷纸质地图（图幅编号：083P06）的地理参考栅格图像，该地图于1975年发布。本图为系列地图的首版，涵盖自然与人文地理要素，具体包括地形起伏、高程点、行政边界、次级与支路道路、铁路、步道、林区、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1975年正式发布，但图面信息的现势性截止至1960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：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或晚于其他要素。如需获取详细的编制生产信息，请查阅单幅图廓左下角标注的内容。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，地图的地理配准工作由多伦多大学图书馆与Eastview Corporation共同承担。