This is the C&EI main line to St. Louis: the line cuts across Illinois, leaving the Chicago-Evansville main at Woodland Junction and then ending in St. Louis.
This is a scan of an original Chicago & Eastern Illinois Track Chart, Woodland Jct to St. Louis. Updated to 1952. 28 11×17 pages. The original C&EI track chart was a fanfold track chart of 110 4-inch panels. In order to keep the same size/readability as the original, it is scanned as 11 by 17 inch pages.