I´m interested in hearing what people think is the best/most scenic road fraom San Diego to Phoenix.
Currently I´m thinking of five possible routes which are (from the most southern one)
Highways 8, 78, 10, 40(route 66).
The thing is that we will be on a road trip and would like too see as much as possibly while travelling across the lands. Since we would like to visit SD Wild animal park route 78 seemed like a natural choice, but know I´m not so sure anymore since most guides says imperial valley/Salton Sea is immersed in intense heat during the time we will be there (September) so I could use some advice on what route to pick.
thanx in advance.