Quick answer. No!!! People who do it from NJ travel. Someone prove me wrong. Im coming out and saying there isnt a 20mile "all" non paved road in NJ?!?!
Does the tow path count? Sorry, just being a wise a$$.
I have this romantic notion (no, not like that!) of what participating in a gravel event would be like.... I listen to various podcasts and read several blogs. The whole thing just sounds cool. The two things holding me back are fitness and navigation. Fitness I'll resolve, keeping myself from getting hopelessly loss on the other hand might be the bigger hurdle.
One of there days I'll do one of these..... Cuz ya know, it's on the bucket list.