It is formed south of the borough of Pompton Lakes by the confluence of the Ramapo and Pequannock rivers.
[1] It flows south, passing between Lincoln Park and Pequannock Township (to the west) and Wayne (to the east).
[2] Its watershed encompasses a section of the Ramapo Mountains along the New York-New Jersey border in the rural suburbs of New York City.
[4] The proposed Passaic River Flood Tunnel would alleviate flooding by taking water from the Pompton River in Wayne and sending it through a tunnel measuring 40 feet (12 m) in diameter for the 20 miles (32 km) to Newark Bay.
You can help Wikipedia by expanding it.This Passaic County, New Jersey state location article is a stub.