Those are some awesome roads. These photos are from Logan Pass in Glacier National Park. Having been on the route, it is a gorgeous drive. It can be a bit jarring how high you are from the valley floor, even a bit scary. I can't imagine how it feels for truckers (which aren't actually allowed on the route).
I tried to look for some exact photos to compare to the game pictures, but then just went nuts with some random photos along Logan Pass, Montana. It's STEEP and mountainous.
Because Logan Pass isn't a US interstate, it has different standards for how the road was built. In the US, all interstates are a certain width, and only elevate at a certain grade. They also have a certain limit to their turn radius to allow for traffic to remain at a constant high speed.
Logan Pass will be elevated, curvy, and fun!