Heading east out of Aramberi, some pavement, for a little while
We asked directions of local truck drivers, with dubious results. One actually didn't know anything about the area! One was making his rounds selling vegetables. The first driver I asked stated there was no outlet. No way thru the mountains. I was ready to accept that. Then we came to a river.
"Well, heck," I said, "let's just go back to Aramberi, I know another route." We stopped there long enough to shed our cold weather gear, and here come two Mexican motorcyclists flying down the road from the mountains we faced, crossing the river without missing a beat, making us feel silly for hesitating. I flagged one down.
"Yes, there is a way, you come out in Mainero".
I had no idea where Mainero was but was assured it was in the state of Tamalipas and it connected to 85. Another driver, another answer: yes. Now we had 2 yes's to one "no". Simple decision: proceed with original plan.