Instead of taking 50 miles of I-90 between Bozeman and Missoula you can take a detour on the Pintler Scenic Loop. I have driven past the sign for it countless times, but until last Monday never scoped it out.
The route leaves the interstate at Anaconda and comes back at Drummond. Calling it a loop is a bit of a misnomer, more like a “Scenic C”.
There were some interesting sights along the way, Anaconda is a classic small town. The town of Philipsburg is located on the route, and we stopped briefly to walk around its vibrant (for a town of 900 at least) downtown.