US-90

East to West - Beaumont to El Paso 

I'm sure there are other places to stop, but this was a way to make the days' drives close in distance, and have a reasonable ("brand name") hotel at each stop. The mileages are from Google Maps (My Maps) which is above. 

Day 0 - Dallas to Beaumont 

This is a drive to the starting point, so it's not for seeing, it's for making time. It's probably five to six hours with stops. 

Day 1 - Beaumont to Luling

This is about 241 miles from the Texas coast to a Buc-ee's (we've been there.) It is the day you cross through Houston, so the timings are estimates, at best. Before you get to Luling, you will pass through Shiner, where the Spoetzl Brewery is located, so stop and try some Shiner beer. 

Day 2 - Luling to Del Rio

This is about 217 miles across cattle country, just south of the Hill Country. You will pass through D'Hanis (my Mom's hometown) and San Antonio. So, there is Tex-Mex everywhere. Stop for lunch at Mi Tierra - it's open 24x7, so you can have lunch anytime. (Tragically, the Alamo movie sets in Brackettville have closed. The real Alamo is still open in San Antonio.) 

Day 3 - Del Rio to Alpine

This is about 205 miles crossing into the beginning of West Texas. You will also pass through Langtry, where Judge Roy Bean once held court. (Just before Langtry, you will cross the Pecos River High Bridge, aboiut 270 feet high, depending on water level.) The Amistad National Recreation Area is just north of Del Rio, near Lake Amistad. 

Day 4 - Alpine to El Paso

This is about 214 miles from West Texas to Far West Texas. It's so far west, you will change time zones to Mountain time. 

Day 5 - 6 - El Paso to Dallas 

Now, the only issue is getting back to Dallas. It's only nine and a half hours, so there is probably going to be a stop for sleep somewhere. Plus, you lose an hour going back to Central time.