The Passaic and Harsimus Line, part of Conrail Shared Assets Operations, serves freight in northeastern New Jersey.
It is part of CSX's main corridor from upstate New York to the rest of the east coast.
The P&H Line then heads east through West Hudson and then across the Harsimus Branch Lift Bridge over the Hackensack River to Marion Junction 40°44′16″N 74°04′25″W / 40.737665°N 74.07372°W / 40.737665; -74.07372 (Marion Junction), where the Northern Running Track goes north, with most rail traffic.
The P&H Line past Marion Junction is now a secondary connection through the Journal Square Transportation Center 40°43′56″N 74°03′47″W / 40.732141°N 74.063114°W / 40.732141; -74.063114 (Journal Square) to the National Docks Branch via a short section of the former River Line.
The former River Line in Hoboken and Weehawken is now used for the Hudson-Bergen Light Rail.