There are 2 routes. One route takes you up to Sonoyta and then across to PP. This is the longest route but the road is very good. It is a partial concrete 4 lane toll road. The other route is shorter and is under construction with one of the worst detours I have ever seen. I would not recommend taking this route unless you like off roading in your RV. Do not make the mistake like I did. DUMB!!!
Moisheh