The Main Line (or Erie Main Line) is a rail line owned and operated by New Jersey Transit running from Suffern, New York to Hoboken, New Jersey, in the United States. It runs daily commuter service and was once the north-south main line of the Erie Lackawanna Railroad. It is colored yellow on NJ Transit system maps, and its symbol is a water wheel.The Bergen County Line splits off the Main Line just west of the Secaucus Junction transfer station and rejoins it at Ridgewood.