The topographic map website TopoZone.com now contains the full set of Canadian topographic maps from Natural Resources Canada (NRCan). Apparently these maps have been available since August of this year but with only the United States topo maps available previously, I didn’t have much reason to revisit the site.
Now that TopoZone has data that is useful to me I am hoping to see an improvement in their user interface. An AJAX tile based interface a la Google Maps certainly would be nice to see.
Another option to use for elevation and topographic maps is to use Google Maps with the Elevation Contours mapplet or to use the EarthTools.org website. The resulting maps from these sites however are cartographically weak in comparison to the original NRCan topographic maps.
Update: Topozone has changed to Trails.com and as a result appear to have removed the Canadian topo maps. Geogratis is still there for Canadian topographic maps but there is no nice web interface available for it.