Best route from Mid South to Great Falls?

[Dog_Up]

Myself and 10 retrievers will be heading to Ak end of May, and I'd like to cross the US another way this year. This is my 5th trip, and usually I leave Memphis and travel N to Sioux Falls before heading W on I-90. With my F250 at limit with the dogs and camper, I'd like to dodge the hills between Sturgis and Billings. I can go further N and cross on I 94, or cross in the south on I-80 or I-70, and then head N thru Denver. Any suggestions much appreciated. Thx
From 2015 trip..

[Dog_Up]

I train them to hunt for clients, and we go up to escape the southern heat. I base camp in North Pole, and will head out in different directions for a week somewhere for new grounds. Just happened to find great places to train near where fish are being caught:)
(Klutina, Gulkana, Willow Ck, Kasilof)

[cross21114]

Dog up,
What do you do with 10 retrievers? Do you sell them in AK?
My lab and I spent 3 months in AK hunting birds - best trip of my life.
Chris

[Dog_Up]

Thx for that..
Guess I was wanting to stay on US roads and services as long as possible,and never considered going the route you suggested. Mapquest actually shows it to be 2hrs closer this way:) New experience on horizon..

[sljohnson1938]

we crossed into Canada at North Portal, ND our two times. We heard that the Winnipeg crossing was a lot longer time wise cause of heavy traffic. Our crossing was only few minutes. Spend the nite at Weyburn, SK city park.

[dbob62180]

Not looking at the map but we have come out of Canada into ND and taken 1-29S. You could go north 1-29 through Winnipeg, then TC 16E. Just a thought-