Every couple of years on the deliveries. The road is cut into the side of a steep hill. If one doesn’t use 4wd getting up, your pretty much spinning your tires most of the way which in turn grinds it into dust that is not recoverable. What’s not ground up is sent to the bottom of the hill by runoff, some of which is able to be put back in place. Some goes over the side and is not able to be recovered because it’s impossible to access that side.