From Wisconsin I'm thinking of heading up to Winnipeg, head west to BC and north to AK. On the return trip head into Montana and make our way east through the bad lands of South Dakota. It's been fun looking at all the information out there about the adventure north.
If you want to go up or down through Montana, Cross at Roosville on 93. Goes right into Banff, and up to Jasper. So worth it! Canadian Rockies are breathtaking!
Enjoy the ride!