ghost town in Montana......

I know Montana has a lot of ghost towns but I'm looking for a particular one. Years ago I saw on TV a show about a ghost town that had a mercantile that was 100% preserved. It had everything in it exactly as it was the day everyone moved out of the town. FINALLY, we're going to be in the area and now I can't remember where that is!!!!! Does anyone on here know where I'm talking about ????? Thank you in advance!