Saw Mill River

The Saw Mill River is a 20 mile (32 km) long tributary of the Hudson River in the United States, flowing from a marsh in Chappaqua to Yonkers, New York, where it empties into the Hudson. Its starting point in Chappaqua is presumed to be a spring. In the 17th century, the Saw Mill River was known as Nepperhan Creek.The Saw Mill River Parkway parallels the river along its West Bank for much of its route through Westchester Country, and Saw Mill River Road along the east.