The kids and I ventured out on the K Trail in Oklahoma this winter. We started from Three Sticks Monument and went west the first day then back at the monument we went east the second day. I heard there was some private property issues as of late on the west side, so we didn't go too far in that direction. Definitely some mud puddles, most shallow, but some exceeding 2.5 feet in spots. We had no issues hitting the skinny pedal to get through.
The Ouachita National Forest is beautiful and we plan on going back to do some more exploring and camping in the spring or fall!