The line used to continue north of Spring Valley to Haverstraw, New York. This portion of the line has been abandoned and most of the right-of-way has been sold off. Part of the line (between Spring Valley and Nanuet) was once part of the main Erie Railroad line from Piermont, New York to Buffalo, New York. Into the 1930s there had been Erie passenger service from Spring Valley at the end of the Pascack line to Suffern station on the newer Erie Main Line. By 1941, this was reduced to a single weekday trip in each direction.