All interstate as others have noted. Your only slow up factors are immigration stops at various points along the way. Depending on traffic volume and whether the officers are being especially thorough on the day you decide to travel, it can add a few minutes to the trip.
http://www.mapquest.com/maps?1c=Phoenix+��Its interstate 8-- which is paved ! Its in the desert at about 70 F degrees5 hours of nothing much.
Its a very easy drive. Don t worry you will enjoy the trip. Great weather that time of year too,not hot but not chilly.. A perfect time to make the trip .Good Luck !
It is not a dirt road! It s highway all the way, not a lot of traffic, boring but easy drive, 5-6 hours.
there are things now called highways. they are paved.
it s major highway the entire way...I-8 for the most part.
It s a dirt road.