Likely your GPS is not using the highway because it is listed as a slow trip.
GPS routing algorithms have two choices. Shortest distance which would take you down dirt roads in the Ozarks that a mule would balk at taking. And fastest route (time) and the GPS will simply refuse to use many scenic roads. AR 7 is one of those.
I haven’t driven AR-7 north of the Arkansas River in many years, but I consider the highway south of the river s nice relaxing drive when towing my 36’ TT.
Of course, my experience on that highway towing dates from when I got my drivers license in the mid-60s.
