traveling from Ohio to Montana

We too are headed to Montana,but leaving in mid Aug. We pack for about 10 days and do laundry when we get to Great Falls at our Dau. house usually 5 to 7 days of travel for the almost 2K miles. We usually do not do much in the way of site seeing on our way as we lived in Rapid City for 9 years and traveled back and forth the southeastern Indiana in that time. We have used about every major road headed west from our place in the last 30 years since moving back that we just pick one at the last minute and go. If you are interested in USAF aviation there is the South Dakota Air and Space Museum at Ellsworth AFB just east of Rapid City off of I-90 and open to the public as it is of the base proper. The Good Sam trip planner will give you lots of sites to see, based on you interest, along the way. Our tenative schedule has us back in the Black Hills by mid Sept. then on south to N.M. before heading home the first week of Oct. Hope you enjoy your trip.