The 39 mi long river which flows through the Irwell Valley in North West England and forms the boundary between Manchester and Salford meats what other river at Waterfoot, Lancashire?
Waterfoot, Lancashire:  It is where the River Whitewell meets the River Irwell. River Irwell: The River Irwell ( ) is a 39 mi long river which flows through the Irwell Valley in North West England.
i don't know