you could "adopt a trail" in whatever areas you are playing in.
it feels nice to give back to the places that give you such a great feeling to visit.
many of us in the off roading community log in countless hours preserving the trails in which we play in an effort to keep them open for future generations.
in doing this maintenance it puts us in the places we enjoy being. it could be from things as simple as picking up trash that less responsible travelers left behind to larger duties of repairing sections of the trail that have become too dangerous from wash outs.
something to think about.
i'm sure you could get information from the forest service in the area you will be recreating in.
in the san bernadino area we have one of the strongest "adopt-a-trail" programs in the country.