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A river source is also called a "rise"
The Ohio River is in the United States. The Oder River is in Czech Republic, Poland and Germany.
Lyon, France is on the river Rhone.
Ohio river, beckley river, fayyette river, and elk river
The River Nile has only four letters.
I guess you are looking for Maas, the Dutch name for what is in French La Meuse. Also possible is Ijzer or in French Yser.
Albany river,Moose river,East main river and Rupert river
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* Lachlan River * Darling River * Bogan River * Murrumbidgee River * Macquarie River * Namoi River (not Naomi River) * Hunter River * Parramatta River * Gwydir River