
A crew member of a southbound Canadian National manifest freight is on the ground to give a roll by inspection to a northbound at South Tolono on the Champaign Subdivision.
During the days when Illinois Central removed the double track in favor of centralized traffic control and passing sidings every so many miles, the control points were named north and south after the nearest city or town. CN has retained the former IC control point names.
Hence South Tolono refers to Tolono, Illinois, where the IC crossed the Wabash line from Detroit. The ex-Wabash is now the Lafayette District of Norfolk Southern.