For a curated town we agree with Bannock or Bodie. The road back into Bodie can be badly washboarded depending on weather and whether the County has run a grader over it recently.
For a truly abandoned town try Anamas Forks, above Silverton, CO.
With your "C" you won't be able to go on up Mastadon Gulch to the mine camps, but AF itself is neat. Check out the San Francisco newspapers glued to the inside of the walls in the "bay window" house as insulation. Caution! The floor is rotten near the door. There are two seasons in that part of Cololrado, Winter and August.