Most railfans familiar with today's Indiana Harbor Belt know that Gibson Yard is used for the flat switching of autoracks.  However, the yard was originally constructed as a double hump in the early 20th century, and it remained that way until the 1980s when the humps were removed.  In this 1963 scene, Tom is standing on the Indianapolis Boulevard nine-span bridge crossing over Gibson.  This eastward look is certainly different 45-plus years later, not only through the track alignment and rolling stock, but many of the structures in the background, such as the coaling tower, have also met their demise.