Forge River

Historical marker location:

1800 Montauk Highway, Mastic, New York

( Marker is on Montauk Highway (State Highway 80) west of Barnes Road, on the right when traveling east.)

Marker installed: 2021

The New York City subway system, which opened in 1904, was the first rapid transit system in the world. The original line ran from City Hall to 145th Street in Harlem.