The term 'New York State River' can be summarized by the crossword solution 'Hudson, ' which is a six-letter word. The Hudson River is a 315-mile long river that flows through the eastern portion of New York State, from the Adirondack Mountains to the Upper New York Bay and into the Atlantic Ocean. It is one of the most important rivers in the United States and has been an integral part of the history of New York State since the 17th century.