If I'm thinking correct you are referring to the road from Laguna Salada over the mountains to north of Valle La Trinidad. If so I went over it 2 years ago all was good then. There are a lot of places the road could wash out. You go through about 6 gates, we tolked to the rachers and at the time granted us acesses. I have heard that gates are getting lock in this gennerl aera.
I can't find the tracks from the trip but it is on the LBMaps. It was pritty easy to find from the west but could a little harder to find from the east side as it comes out in a large wash.
I'd give it a 50/50