EJ&E SD38-2 658 is traveling down unfamiliar rails (UP mainline at Joliet) as it leads a southbound loaded coal train through Joliet Union Station, preparing to cross the diamonds.
Another Rock Island commuter service oddball--AB6 750--arrives at Joliet with an early afternoon commuter run. I was in 8th Grade and just getting to know about rail photography.
Inbound train number 420, due into Chicago (LaSalle Street) at 6:27 P.M., departs Joliet right on time at 5:13 P.M., passing U.D. Tower with MP36 410 pushing hard.