A great family of vehicular enthusiast who's main objective is having fun and environmental stewardship.  Their main activity is trail cleanup of public lands vaguely disguised as an off-road navigational rally.  Along with that they have expanded to mini-bike races, Gambler-cross, and other great activities to be named in the future.  If you've never heard of it, google it, then come join the fun.  But seriously, ABG.