I drove out from NC back in the 60s. There were no interstate roads then. I had a 1953 ford that I had installed an Olds motor in and it ran great. I drove from Phoenix Az through Flagstaff to the Grand Canyon and then to Colorado Springs through the Indian reservations and the mountains. I will never forget that trip. Very little traffic back then. I just used a road map and picked my own route. I used route 66 most of the way out to the west. Too much traffic to enjoy it that way now.
Ken P.