We now have a New Toporama web page. The source of this product is no longer provided by the NTDB ( now a static vector data collection) but rather based on CanVec data collection on GeoGratis portal. This product is revised every 6 months for possible updates.
( http://geogratis.gc.ca/geogratis/en/product/search.do?id=36765 ) (click here)
GeoGratis also includes a ftp dowload site for massive data download by users.
( ftp://ftp2.cits.nrcan.gc.ca/pub/toporama/ ) (click here)
Note : GeoGratis and GeoBase offer cost free data collections to GIS users
Natural Resources Canada / Ressources naturelles Canada
My original page dealing with the now obsolete Toporama I mapping is available for archival purposes here.
The Atlas Of Canada (click here) is also available.