The original line began at the Christopher Street Ferry and ran north on West Street (west of the Central Park, North and East River trackage), northeast on 11th Street, north on 7th Avenue (along Broadway and Seventh Avenue Railroad trackage), east on 14th Street to Union Square, north on Broadway (also Broadway and Seventh Avenue Railroad trackage), east on 17th Street (eastbound) and 18th Street (westbound), north on 1st Avenue (Central Park, North and East River Railroad trackage), and east on 23rd Street.
The original route began at the Christopher Street Ferry and proceeded north on West Street (west of Central Park's rail lines), then northeast on 11th Street, north on 7th Avenue along Broadway and Seventh Avenue Railroad tracks, east on 14th Street to Union Square, north on Broadway alongside the railroad tracks, east on 17th Street in both directions, north on 1st Avenue with Central Park's rail line, and finally east on 23rd Street.