The Montreal Metro is the main form of public transportation within the city of Montreal, Quebec, Canada.
The Metro, operated by the Société de transport de Montréal (STM), was inaugurated on October 14, 1966, during the tenure of Mayor Jean Drapeau. Originally consisting of 26 stations on three separate lines, the Metro now incorporates 68 stations on four lines measuring 66.0 kilometres (41.0 miles) in length, serving the north, east, and centre of the Island of Montreal with a connection to Longueuil, via the Yellow Line, and Laval, via the Orange line. The metro system is currently Canada's second longest and second in total annual passenger usage (in both respects to Toronto's subway system), serving 286.7 million riders a year; according to the STM website, the metro system has transported over 6 billion passengers as of 2006, which is equivalent to the world's population. The Montreal Metro was inspired by the Paris Metro and in turn is also the inspiration for the Lyon (France) Metro, constructed a few years later, which shares the same rubber-wheel car design and Montreal Metro station architecture.