The river rises several kilometres southwest of Chatham in central Northumberland County and flows northeast into the Miramichi River at Napan Bay.
Four bridges cross the river at various points: at Hannah Lane, Highway 11, Johnston Lane, and Highway 117.
At one time, these bridges were covered, although all have been upgraded to steel and concrete structures.
The river is tidal below Lower Napan.
This article related to a river in New Brunswick, Canada is a stub.