I'm not from AR, but I'm as close as you can get and still be a resident, actually former resident, of KS. I grew up in a small town of 3500 people, Galena, KS. Galena's city limits on the eastern side of the town is the MO state line. The OK state line is about 2-2.5 miles S of our southern city limit. That puts us down in the extreme SE corner of KS. It's probably an hours drive, maybe less, to get to the AR state line and its closest point in the 4 State Area. It's been 41 years since the Navy took us away and now we've been in the Lowcountry of SC for the past 34+ years.
Bill