Another fascinating ghost mining town in Northern California is Bodie. We visited there with our kids in the early 1990's and what a memory! The road into Bodie at that time was the roughest I have ever seen in the lower 48 ... the refrigerator in our motorhome broke its coolant line from the vibrations on the way back to the main road. I figured maybe an axle was going break too, but we made it back with all 6 wheels attached and running. Still, we were glad we made the trip. Bodie is quite large, as ghost towns go. I think there were at least 40 buildings there.
Bodie Ghost Town