Does the CanAm/US-52 Highway have a lot of traffic?

Take #2 hwy across the top of the US. In some spots the speed limit is 60. In Montana it used to be,"whatever you think is safe and prudent" but now it's 70 during the daylight hours, if I can remember correctly. I do the speed limit up to 60 or so but there are a lot slower people and the faster ones pass you. You can see for a long ways. In some places #2 is 4 lane. There is no problem for gas/diesel stations along the way.