 It is one of three terminals (the others being on the Blue Line and on the Yellow Line) that does not have a yard assigned to it.This station is the current terminal of the East 63rd branch of the Green Line, and the easternmost station on the 'L' system.Cottage Grove officially opened in 1893 when the South Side Rapid Transit company extended its line from 39th Street to Jackson Park, just in time for the World's Columbian Exposition.