forsakenfuture,
That location is a little southeast of Mena, Arkansas (Ouachita Forest) on forest road CR81. We camped on the upper part of the Cossatot River.
If your looking at a topo map, CR81 is close to Wolf Pen Gap area.
Here is a link to the area in question:
Video LINK [Scroll Down To Camping in Quachita Forest]
Alan [UNI]