Little Bighorn is in the eastern part of the state and just a few miles off the interstate. It was surprisingly interesting, I have avoided it even tho we passed by it a number of times but my son wanted to see it. I think the NPS did a poor job of organizing the park tho and made it more difficult to see the place.
We spent a lot of time in Montana last summer and everywhere we stopped was interesting. Ghost towns are all over the place. My son is planning to attend Montana State in Bozeman. We went to the east side of Glacier but the Going to the Sun road was still closed. We spent 3 days looking at other places in the park. Then after a trip to Banff we came back down on the west side of Glacier and the GTSR was still closed. But we found enough to do for 3 more days.
Then we took our time going south and stopped at a couple of small towns which all had lots to do. We have only been thru Helena and Butte and haven't stopped near there.
I was surprised at the many lakes and rivers in the west part of the state.