easy - lat=37.7338183 lon=-88.9286506 Crab Orchard and Egyptian's shop. The COER was the last active steam freight line. http://rrpicturearchives.net/pictures\23134\IMG_0494-2ddd.JPG
Spot on David, it is Crab Orchard & Egyptians shop in Marion IL. That they were the last to have steamlocos in active freight service would have been my last hint, if it had gotten so far.