Best route to Cass, WV from the north

I would travel the Moorfield/Petersburg route, 250 is not a very RV friendly route. I recommend East Fork Campground and Stables in Durbin or the recently reopened Boyer Station Campground in Boyer. There will be no cell phone service so you will need Wifi for communicating. Both campgrounds have it. The Durbin Rocket, a coal fired scenic train is in Durbin. You can watch it from the East Fork Campground or board it there too. It travels a section of the Greenbriar River. Don't miss a chance to visit the National Radio Astronomy Observatory while you are in the area.It is in Greenback WV. The Observatory is the reason there is no cell service.I prefer the East Fork Campground for its scenic setting, the owner has lived all of his life and is very knowledgeable about the history of the area. He has relatives in Cass. Enjoy our Wild and Wonderful State, like the song says Almost Heaven.