Chicago Tunnel Company

I found this site about the little-known and long closed Chicago Tunnel Company. It seems a company ran a small railway under the city of Chicago, moving freight and refuse for some 50 years, from 1908 to 1959. The tunnels are still there, but in terrible shape. This site details much of the history of the tunnels and the company, and is illustrated with great vintage photographs, and some taken by the author on an excursion into the tunnels.

I found this on BrianKaneOnline.