What Is A Gravel Grinder?

Quote:

The route under consideration must have over half its distance un-paved. The route can consist of single track, dirt roads, or crushed rock. Pavement is okay, and sometimes it is necessary, but having an event that is predominantly pavement with a few sections of gravel or dirt doesn't cut the mustard. Even if it is like Paris-Roubaix.

The route under consideration must have less than half its distance consisting of single track. Just like too much pavement makes a route a road ride, too much single track and dirt makes a route a mountain bike ride.
The route should be predominantly on public roads, although there can be exceptions to this rule.

Ideally, the route should be predominantly crushed rock/gravel. (Obvious!) This is what makes a gravel grinder what it is. While this is true, farm roads and dirt double track, or even Jeep roads could figure into this equation.

My 0.2, any road Gravel Road in Northern Oakland County can be a grinder.

I will add my two centss here...

My route 98 miles public gravel roads (only 2 miles paved) the most paved at one time is about .2 miles of connector that most has a 6' gravel shoulder on low traffic roads.