If you belong to "Good Sam" try their trip routing program. Or, go purchase a "Streets & Trips" computer program and map out your route that way. I use "Streets and Trips" because you can alter the route as you plan and it will give you mileages along the way so you plan where you want to make your stops. I've used that program for my trips for many years.
2014 Palomino Puma 25RS 28 days in 2014, 47 days in 2015, 51 days in 2016 plus 6 more booked
2011 F-150 Supercrew 5.0 6spd, Me, Xyl and the 2 kids, BooBoo and Gracie (kittens)