CTA Blue Line	CTA Brown Line	CTA Green Line	CTA Loop	CTA North Side Main Line
CTA Orange Line	CTA Pink Line	CTA Red Line	CTA Rolling Stock	CTA Yellow Line
PCC Streetcars in Chicago	Track Map

Links

Chicago Transit Authority. The official site of Chicago's transit agency.

Chicago-L.org. A big site concerning the history of the Chicago "L" system. System maps, car rosters, L stations, fares, history, it's all covered here. The Chicago version of www.nycsubway.org!

CTA Photos. Photos of CTA PCCs in the 1950s, and more recent rapid transit cars. Also North Shore Line railroad photos.

The Gray Line. A proposal to convert Metra electric lines within the city of Chicago to CTA rapid transit operation.