Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Cedar Swamp River is a small river in Lakeville, Massachusetts that flows 4.6 miles in a northwesterly direction through the western part of the town to where it forms the Assonet River near the Freetown line, just south of the village of Myricks. It is a tributary of the Taunton River. The river is crossed by a railroad line that was originally built as the Taunton and New Bedford Railroad in 1840. It is now operated by CSX.