A westbound Union Pacific train crosses the Harahan Bridge into West Memphis, Arkansas, with a Thoroughbred locomotive leading the way. This train originated as Norfolk Southern train number 17Z in Sheffield, Alabama, and continues west as a Union Pacific "run-though" train. NS crews operate between Sheffield and Memphis, where they swap crews with UP. The Memphis skyline can be seen a few miles in the distance, across the Mississippi River. Photo by Casey Thomason. For more information about Norfolk Southern, visit www.nscorp.com