I cast my vote for the vicinity of Jeffrey CityJeffrey City was (is?) so memorably godawful and anything improving that would spoil it. I think a book could be written of Jeffrey City stories. I've no recollection of a church there but I did stay in the dismal motel before it closed, incredibly expensive, $70+, for a freezing room, broke TV and a leaking toilet.
Sorry for not contributing much but I do remember thinking a B & B in Twin Bridges would have been nice.