highway 2

When we went thru there was no cell phone signal except in one of the small towns. It's no Hwy 50 but keep your fuel tank over 50%. RV cg aren't thick on the ground either without diverting off the highway.

We enjoyed it.

Many people have. I did last year for a good portion of that, with a side trip down to Theodore Roosevelt NP. It's a good, mostly two lane road. While there are sporadic towns along the way that you need to slow down for, it generally is reasonably easy driving and not slow going.

There are a number of posts here about that. I've done half of ND and MT to Glacier.