If you know where you’re going but need to know which map you need, here’s a good GUI to help find which may to get: http://www.maptown.com/canadiantopographical/albertantsindex.html
http://maps.nrcan.gc.ca/topo_metadata/index_e.php

Now browse the GC ftp site for a scan of the map.  Yes! there is a complete list of NST maps of Canada – downloadable!!
http://ftp2.cits.rncan.gc.ca/pub/canmatrix/50k_300dpi/
http://ftp2.cits.rncan.gc.ca/pub/canmatrix/250k_300dpi/

Please note these are LARGE files (80Mb each).

 

 Other interesting (?) maps of Alberta
http://www.ags.gov.ab.ca/gis/gis_and_mapping.html

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