These series are cover the various suburban commuter lines radiating from downtown Chicago.
On each page, you will see descriptions such as this:
001 South CP Canal
- 001 is an arbitrary number to keep the photos in order.
- South indicates the photo is looking in the southbound direction.
- CP Canal is the name of the interlocking. Intermediate signals are identified by their number rather than a name.
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C&NW Station towards Harvard
Union Station towards Fox Lake
Union Station towards Aurora
Union Station towards Manhattan

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