I looked at SVRy on Google yesterday and saw the same image. Actually what you are seeing is this. Starting on the upper left is Hawley siding. Left to right is a MOW car, which I have never seen used, followed by two ex-WP&Y side dumps, then six ex-EBT,ex_-WP&Y hoppers. On the right center left to right is coach 20, an open gon, 1101 covered gon, caboose 5 and # 19, in reverse, pulling the consist back to McEwen. It is not actually pulling much since it is downhill from Sumpter to McEwen, although there should be a little cylinder pressure to keep lubrication going, and prevent smoke box debris from entering the cylinders. McEwen is on the right about 1.5 miles.
dan