The closest public trails, that I know of, is out around Randolph, Ks, at Tuttle Creek Lake. There is a private park around Fort Scott, Ks., called Kansas Rocks. If anyone knows of anything else, I hope they chime in.
Haven't been much this year so far. Keep hoping it will snow, so I can get and play in it. I go to Tuttle 2 or 3 times a year, with my son, during the week, since that is when he has time off to go. During the rest of the year, I try to go on the KC Jeep Club outings. I also go out and just drive around and see what I can find.