paulj wrote:
There's nothing wrong with the obvious, I90 to I15 to US2. But there are various "diagonals" that might - or might not be worth your time.
US212 to Billings is one - it's more remote and 2 lane. Some like the time savings (about an hour), others prefer sticking with the 'main' route.
There are various routes between Billings and Great Falls, US89, US12, MT 200, US2. Just be ware of pieces like US89 that go through National Forests (unless you like mountains).
US89 to Browning is fine, but to St Mary's it gets into foothills, so is twistier. 464 to Babb is a straighter alternative.
But if aiming for the west side, you could go to Missoula, and then up.
On your mapping software, turn on 'terrain' to get an idea of the hilliness. East Montana is generally flat and open, but mountains extends diagonally from roughtly Yellowstone to Glacier.
Ive never been on hwy 2 thought we try it been down 90 many times just wanted to know if hwy 2 was RV friendly thank you .