Millstone River

The Millstone River is a 38.6mi tributary of the Raritan River in central New Jersey in the United States.The Millstone River begins in western Monmouth County and flows northward through southern Somerset County into the Raritan River at Manville. Almost three quarters of its length is paralleled by the Delaware and Raritan Canal. Both the Millstone River and parallel canal provide drinking water to portions of central New Jersey and provide recreational uses as well.