At least for now, the good old basemap is still available with the direct link: http://maps.gov.bc.ca/imf50/imf.jsp?site=bc_basemap
There is another interface at http://openmaps.gov.bc.ca/
This is similar to the one G-spotter mentions, but it seems easier to get contours and less clutter. Unfortunately it doesn't seem to want to show contours on glaciated regions.