Originally Posted by BlueLghtning
I'm not aware of any mapping service that would actually route you on dirt roads on purpose. One of the reasons is very few are actually up to date on what actually is paved vs dirt. One of the best way to find dirt roads is county type maps, but it takes a lot of time studying them and then putting a route together. Then of course, you don't know if the roads still exist, are accessible, or how tough or easy they are until you ride them.
which is why we have Dan around to plan these things...