Another Australia Railroad Group loco, this is a 42" gauge loco on dual gauge track in Western Australia 2009. DB/DBZ class, only 13 units built 1982-83, mechanically comparable to an EMD SD38-2 in terms of engine, HP and 6 traction motors. I think most of the tonnage on WA narrow gauge is grain for export. This unit isn't actually displaying a road name; it might have been traded off to another operator?
http://en.wikipedia.org/wiki/WAGR_DB_class