Xastir
I've had a hard time obtaining Canadian maps for xastir (APRS software for UBOs). The Natural Resources Canada department provides topo maps for free, from the Atlas Of Canada site
There are scripts that come with xastir that will download and geo reference these for you. Both toporama50k.pl and toporama250k.pl scripts come with xastir, you might have to locate them on your machine.
If you have xastir, the download scripts are included. The maps usually live in /usr/local/share/xastir/maps and have subdirectories that relefect the areas of interest. The official documentation suggests:
World/ Canada/ Canada/Province/ USA/ USA/State/WA/ USA/State/WA/County/ ... GNIS/ Overlay/
To do a download of the files from NRCAN, navigate to the top level directory of interest and then execute the perl script $XASTIR_ROOT/scripts/toporama250k.pl If you haven't set $XASTIR_ROOT then you should just type in the path to where it is installed. The customary install path is /usr/local/xastir-I think! I'll check and and re-edit.