Green Line (Montreal Metro) Green Line (Montreal Metro) The Green Line (), also known as Line 1, is one of the four lines of the Montreal Metro in Montreal, Quebec, Canada. The line runs through the commercial section of downtown Montreal underneath Boulevard de Maisonneuve, formerly Rue de Montigny. It runs mainly on a northeast to southwest axis with a connection to the Orange and Yellow Lines at Berri-UQAM, and with the Orange Line west of downtown at Lionel-Groulx. The section between Atwater and Frontenac was part of the initial network; the line was extended to Honoré-Beaugrand in 1976 to provide easy access to
Yellow Line (Washington Metro) Green Line from L'Enfant Plaza northward to Fort Totten. It is a quick link between downtown Washington and National Airport, and shares nearly all of its track with either the Green or Blue Line. The Yellow Line has only two stations that are not shared by any other lines (Eisenhower Avenue and Huntington), and only two sections of track that are not shared by any other lines – the section at the south end of the line, and the section between the Pentagon and L'Enfant Plaza stations, crossing the Potomac River. The Southern terminus of the Yellow Line is adjacent