I took a little trip this weekend and did the Huntsville to Oark ride with the NW Arkansas guys. It was a great trip. I just finished cleaning up the GPX file for the trip. I started the log at Hector, and it finishes at Bono Ar West of Greenbrier. Look close as theres two places I had to back track due to creeks to deep to cross. This won't be a problem in the summer months. The link to my report is in my sig below. Hope someone else finds it useful. If the dead ends are avoided this track can be done on most any ADV bike. Knobbies are not really needed. I did it in an old XT550 and Trials Tires. Hector-via scenic route-Jasper-Huntsville-Oark-Hector again, then back towards Conway via the back roads.