CTA Surface System History presented by the Illinois Railway Museum
               
Northwest Hwy
(H) - denotes route history included in description.
* - denotes maps from the Moffat Collection.
02/01/1970
11/30/1975
11/30/1975 v2
11/30/1975 v3
03/30/1980
04/18/1982 (H)
07/06/1982
12/01/1982 (H)
10/17/1983
10/17/1983 v2 (H)
01/27/1985 (H)
03/08/1992
09/30/1993 (H)
05/31/2007
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