The Columbus Avenue Line, also called the Broadway and Columbus Avenue Line, is a public transit line in Manhattan, New York City, United States, running mostly along Columbus Avenue, 116th Street, and Lenox Avenue from Lower Manhattan to Harlem. Originally a streetcar line, it is now the M7 bus route, operated by the New York City Transit Authority. The M7 bus now begins at 14th Street, sharing 6th Avenue, Broadway, and 7th Avenue with the M6 (former Broadway Line streetcar). It turns west on 59th Street and northwest on Broadway to reach the one-way pair of Amsterdam Avenue (northbound) and Columbus Avenue (southbound). At 106th Street, the M6 turns east, north on Manhattan Avenue, east on 116th Street, and north on Lenox Avenue to a loop at the 145th Street subway station; this is the e