We are crossing at Reynosa and heading for Villa Corona. Hwy 31 begins at Linares and goes west to 57. I am trying to break my trip into shorter steps, see some country we have not been through and try to overnight in RV parks.
We have been traveling in Mexico since the mid 1990's so are familiar with Hwy designations and the "perils" of Mexican bandidos. My bigger concern on secondary highways is the transition from pavement to cobblestone and constricted streets in small towns. As I get older my sense of adventure diminishes.
My proposed route is Reynosa, Matehuala, Zacatecas, Villa Corona and avoiding Guadalajara if possible.
Scorp.