Across the paddock from the hidden slab hut was this attractive old farm building. You never see places like this when zooming down highways, that's what's so wonderful about mooching along the side roads.
With a little bit of googling I discovered these old buildings are on a property named Littleton which was originally 10 acres and conducted as an orchard specialising in apples, pears and cherries. This is a packing shed from the orcharding days. Today is it part of a beef cattle stud.
I've added Napoleon Reef as a locality at 100 Towns.