Description

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the successive stages in the retreat of the last ice sheet in North America in respect to coverage of the Canadian landmass. Included with the map are the speculative ice-marginal positions with approximate time in years before present and present day ice cover which is denoted as well as areas which were unglaciated during the last glaciation period.

Resources

Name	Format	Description	Link
Download PDF English Source Identification file through HTTP	PDF		https://ftp.geogratis.gc.ca/pub/nrcan_rncan/raster/atlas_4_ed/eng/doc/Atlas4thEditionSourcesEn.pdf
Download the English JPG through HTTP	JPG		https://ftp.geogratis.gc.ca/pub/nrcan_rncan/raster/atlas_4_ed/eng/environment/land/031_32.jpg
Download the English PDF through HTTP	PDF		https://ftp.geogratis.gc.ca/pub/nrcan_rncan/raster/atlas_4_ed/eng/environment/land/031_32.pdf
Download PDF French Source Identification file through HTTP	PDF		https://ftp.geogratis.gc.ca/pub/nrcan_rncan/raster/atlas_4_ed/fra/doc/Atlas4thEditionSourcesFr.pdf
Download the French JPG through HTTP	JPG		https://ftp.geogratis.gc.ca/pub/nrcan_rncan/raster/atlas_4_ed/fra/environment/land/031_32.jpg
Download the French PDF through HTTP	PDF		https://ftp.geogratis.gc.ca/pub/nrcan_rncan/raster/atlas_4_ed/fra/environment/land/031_32.pdf

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