The Blue Line, also known as the O'Hare-Congress Line and the West-Northwest Line, is a 26 miles Chicago "L" line which extends through The Loop from O'Hare International Airport at the far northwest end of the city, through downtown via the Milwaukee-Dearborn Subway and across the West Side to its southwest end at Forest Park, with a total of 33 stations (11 on the Forest Park Branch, nine in the Milwaukee-Dearborn Subway and 13 on the O'Hare Branch.)