Three brand-new Missouri Pacific EMD SD50 locomotives power a coal train at Dupo, Illinois, in December 1984. Dupo is located south of St. Louis on the Illinois side of the Mississippi River.

Yard crew was nice enough to pull the UP4141/1943 duo to a perfect spot for photos before they were added to the consist of UP train MDUPB-22 in Dupo, Illinois.

UP 4141 and UP 1943 was on display earlier this morning before getting picked up by the 15E/MDUPB.

UP 4141 and UP 1943 was on display earlier this morning before getting picked up by the 15E/MDUPB.

A pair of Missouri Pacific six-axle EMDs are seen moving engine lite in the yard in Dupo. Tom Bowers photo

UP 1983 has completed its drop off and pick up at Dupo, IL and is leading KOAMN-16 south at CP Bixby.

A pair of Southern Belles lead an auto train under the classic Missouri Pacific cantilever in Dupo, IL.

This must be the lowest priority train of the day. They pulled up here south of Dupo, Illinois and got run-around by trains in both directions for a couple hours.

MoPac heritage unit is beneath a former Missouri Pacific cantilever signal prior to running an Operation Lifesaver Special on the Chester Sub from Dupo, IL to Gorham, IL.

UP 3053 continues south out of Dupo while passing under a classic Missouri Pacific signal bridge on Union Pacific's Chester Subdivision. Locomotives: UP 3053 & UP 5493

After waiting for maintenance workers to give up their track time, this southbound Norfolk Southern train is departing from the Dupo Yard.

Southbound Union Pacific Z train accelerates past the former Missouri Pacific cantilever signal after stopping to change crews in Dupo, IL.

Silhouette of an American Workhorse: On an undoubtedly chilly November night, a tried and true EMD SD40-2 is on the point of a NB train, waiting for a signal at ICG, just outside of Dupo. O... (more)

Union Pacific 844 leads a short excursion train under the cantilever signal at Dupo, IL on the UP Chester Subdivision. UP 844 is heading to Memphis, Tennessee on Saturday for a bridge unveiling... (more)

Inspections: On a chilly winter evening, the conductor on what is most likely a NB empty coal train, steps down to roll by a passing SB intermodal. At this point, just a blur in the night.