4 back-roads routes touch Texas, with 35 curated stops along them and 4 ready-made itineraries crossing the state.
Other states: Alabama · Arkansas · Florida · Georgia · Kentucky · Louisiana · Mississippi · North Carolina · South Carolina · Tennessee · Virginia · West Virginia.
4 routes cross Texas, from 1 day to 4 days each; driven back to back they add up to about 965 miles.
El Camino Real: The Texas Act at about 330 miles (San Augustine → San Antonio), a 3–4-day drive.
US 90: Rice & Rails: about 130 miles, 1 day, Lafayette → Orange, TX.
These routes carry on into Louisiana.