I'm in north-central Nebraska, and gravel roads are damn near the only thing we have around here unless we have permission to ride in pastures or gravel pits. Thanks to MSHA riding on gravel pit land is quite illegal, so although we have permission from the land owners, if we get caught out there a lot of people get screwed over. There are a few small private tracks around here too, but no matter how many times the issue is brought up, nobody's willing to take on the responsibility of building and maintaining a public track. That leaves us with gravel roads. Around here, the possibilities for riding on gravel are pretty much endless, because that's about all there is, and everybody rides utility quads on gravel anyway, so nobody really cares about sport quads and dirt bikes ripping down the roads.