I've been going to Arkansas to ride the curvy Ozarks since I was a kid or 36 yrs whichever comes first but just got home from a 4 day ride from southeast Texas.
Somehow I never discovered HW16!
We left Mountain view headed south on HW9 and turned left on 16 and rode it all the way to the pigtrail aka HW23.
What an awesome ride! Be sure gas up as I remember the only gas was in Deer just on the west side of HW7. There is very little of anything but curves on the whole route. Talk about a chance to practice. I found myself talking my way through the curves and looking far ahead at my aim points rather than close up. What a smooth ride!