In reply to:

If you look at the USGS maps around that area north and west of Terlingua there are alot of roads and "jeep trails". That is the information that I am looking for. Although if they are all private it really doesn't matter.


I have created routes of the jeep trails out there using USAPhotomaps (you can also view USGS maps with it,great program,btw),but the problem is, the data on the maps is very outdated for the area. Some of them either no longer exist, or run on private property.