There is more to the photo than meets the eye. The track the engine is sitting on leads to the wood chip facility. The operation had a track mobile to spot the cars for unloading. The chips traveled over SP rail to the reload and then were headed for a Crown Zellerbach paper mill at Camas, Washington. It was apparently cheaper and faster to reload than interchange with the BN.

Some chips went to a paper mill up river at West Linn. This mill did not have rail service but depended upon tug and barge service. The finished product would be barged down to a large warehouse facility just to the south of the currentg Gunderson rail car facility for reloading onto rail.

The track just to the front of the engine leads to Oswego Portland Cement's facility. Those hopper cars on the upper level are probably filled with cement. The cement plant had a small GE 25 ton engine to spot the cars. The plant's raw material came from Texada Island in British Columbia and traveled to Lake Oswego by large ocean-going barges.

Eventually, the Camas Mill got their chips from non-SP sources and the cement plant cloased down. Today the area is condos and apartments and virtualy no signs of the former rail activity are event except for the Portland and Western's mainline.