CTA Surface System History presented by the Illinois Railway Museum
               
North-South
(H) - denotes route history included in description.
* - denotes maps from the Moffat Collection.
01/1954
06/1957
09/1959 *
04/1963
11/1965
08/1968
05/1969 *
01/13/1973
09/02/1973
09/02/1973 v2
09/02/1973 v3 (Undated)
09/11/1977 *
09/05/1978 *
06/04/1979
04/06/1980
01/03/1982 (H)
01/03/1982 v2 (H)
12/12/1982
09/11/1983 (H)
11/01/1987
08/09/1992
09/30/1993 (H)
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