I take your word for it. The only reference I have is the Google Maps application to determine whether roads are paved or not. On the map of Black Diamond Road and Yates Road intersection, the roads looked to be well defined and paved. At a closer look and using Google Earth view, the roads don't look paved at all. As you say, they look to be unpaved with rough and uneven edges leading to side ditches. I have not been there, yet and plan on making the journey in the spring but I will not be making a trip during the winter months. I expect the site to be abandoned before spring, though with my record, I'm probably off base on that too. I am still planning for spring, regardless of activity or abandonment as I have made some new acquaintances that I want to meet. I have been invited to visit and will do so.
Thanks for your input and information.