We are hoping to take 4 to 6 weeks in the summer of 2017 with our children who will be 9 and 11 at the time. I'd like to start and end in the Seattle area and hit Montana, Yellowstone, Mt Rushmore, lakeside area of Michigan, the Tri-State area, DC, Carolina's, Georgia, Tennesee, Kentucky, and Grand Canyon. I think we will skip most of New England for this trip unless we can realistically hit it in this time frame. Can anyone suggest a route? I'm having a hard time finding good information to get started planning. Also, do you think about $100/day is reasonable? I'm planning on mostly camping.