I a going to be flying low level VFR from Toronto to Vancouver
if you want to go west via Calgary, to Banff and through Kicking Horse Pass. West from Lethbridge through the Crow's Nest
You NEED good sectional charts depicting the route through the mountainous area. If you go south, through Lethbridge, stop and talk to someone about travel through the southern passes. The winds down south are usually very strong and you can have a lot of turbulence. If you go via Calgary-Banff, stop at Springbank airport and talk to someone at the Calgary Flying Club for guidance through there as well. Same thing applies, if the winds high up are strong, you will get hit with severe turbulence. Take the time to plan.