WestTexas

I'll confess that we did NOT do the road walks. I broke our weekends up into sections that started and ended with the actual trail, and we parked vehicles at both ends. One of those weekends had a stretch in the middle and we used three vehicles. It's the section that begins on the east side of I-45 at the Huntsville State Park. For that one, we didn't start were the west trail ends on the west side of 45 just north of the park entrance. Our next weekend we started across 45 one the east side a mile or two back down the roads where the trail actually enters the woods a few hundred yards down Evelyn Ln. If you go a hundred yards or so past the trailhead you'll see a little parking cutout on the left side of the road to park a vehicle.

We then did that section until it comes out on FM2296 a little south of Pine Valley. We had parked a second vehicle at that trailhead, and then drove up to Pine Valley, turn right on Four Notch Loop Rd. and go south to the Four Notch Loop trailhead. You don't want to walk that road section. Cars, dogs, hard walking.
You'll want to park your last/third vehicle at the little Big Woods parking area at Joe Warner, Ira Denson roads intersection that is a mile or so north of 150.

You'll then want to drive the section from that parking area down Joe Warner Rd., the short stretch up 150 to Evergreen, and then down the long stretch of 945 to where the next trailhead picks up at Butch Arthur Dr.

To sum it up, basically everything west of I-45 is trails and hiking. Then if you skip the two road sections I mention above, doing the trail in between, then everything starting at 945/Butch Arthur to the end is good hiking again.

rgds,
WestTexas