During the month May we, two couples mid-sixties from France, want to visit South-West of the United State. We start and end in Denver. We intend to travel with two RV’s with a length of around 20 fee...
I would cut out San Francisco and Yosemite then you might have a good trip. If SF is a must do a fly in at the first or end of the trip. If you are thinking about taking the mountain pass from hwy 395 to Yosemite, it usually isn't open until June or July.