Try Bannock, MT. Very well preserved ghost town. We were there several years ago while a movie was being filmed. Here is a link to SW Montana: http://southwestmt.com/thegreatoutdoors/ghosttowns/
Bodie in California in a state of arrested decay.
We explore ones in Nevada as that state has so many from mining days. But, most require 4x4 and/or high clearance. A few: Delamar, Park City, Osceola.
Pioche, NV isnt really dead but has a Boot Hill, old tram, and a really cool courthouse with jail. Belmont, ditto with beautiful brick courthouse.
Frisco, Utah is accessible.
Silver City, Idaho, not really a ghost town but has really cool old buildings. It is a drive in about 20+ miles and the road can be rough but we saw a low rider Honda so who knows. The rest of Idaho has quite a few, too.
There are ghost town books and websites. Check them out.
