This is not a working distillery, but an old distillery now maintained as a whisky distilling museum by Historic Scotland, that used to produce the Dallas Dhu single malt.  It is quite frankly not a very good concept for a museum, considering the scotch whisky industry is booming, new distilleries are opening all the time and this one is in the heart of Speyside, where there are dozens of working distilleries with visitor centers, many with longer histories than Dallas Dhu and probably all with better known brands, that all produce whisky in the same way.  So why would you go and walk around a dead one that used to produce a whisky no-one has ever heard of?  The fantastic little Benromach is in the same town (and closer to the main road) so just go there.  Morbid curiosity meant that one day we did find ourselves driving to Forres to see it and we found it closed with a sign in the office window saying "out to lunch".  I couldn't agree more.