Are you thinking of the Mohawk River which meets up with the Hudson River around Waterford, New York (it's a bit north of Albany, NY)? It doesn't "flow through" the Hudson per se, but is the only thing I can think of as they do join up.
river amazon
The river Nile is the major river that flows through Egypt.
The Hudson River flows down the west side of Manhattan and the east side of New Jersey.
Mitchell River flows through Bright VIC.
The river which flows through the Grand Canyon is the Colorado river.
The river Corrib flows through Galway city in Ireland.
No river flows southwest through Dublin. The river Dodder flows from the southwest, in a northeast direction and the river Tolka flows in a southeasterly direction.
The Quibú river
The river Gambia
the river name is BARADA
The River Tees.
The river Forth runs through Stirling.