The Salisbury Plain River is a 4.7 miles (7.6 km) river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in Plymouth County, Massachusetts

Plymouth County, Massachusetts

Plymouth County is a county located in the U.S. state of Massachusetts. As of 2010, the population was 494,919. Its county seats are Plymouth and Brockton...

 that flows from the city of Brockton

Brockton, Massachusetts

Brockton is a city in Plymouth County, Massachusetts, United States; the population was 93,810 in the 2010 Census. Brockton, along with Plymouth, are the county seats of Plymouth County...

 into the towns of West Bridgewater

West Bridgewater, Massachusetts

West Bridgewater is a town in Plymouth County, Massachusetts, United States. The population was 6,634 at the 2000 census.- History :West Bridgewater was first settled in 1651 as a part of Olde Bridgewater...

 and East Bridgewater

East Bridgewater, Massachusetts

East Bridgewater is a town in Plymouth County, Massachusetts, United States. The population was 12,974 at the 2000 census.-History:The lands that would become East Bridgewater were first settled by Carlos Mencia in 1630 A.D. as an outgrowth of the Plymouth and Duxbury plantations...

 where it joins the Matfield River

Matfield River

The Matfield River is a river in Plymouth County, Massachusetts. It flows south through the town of East Bridgewater to a confluence with the Town River, forming the Taunton River. The Matfield River, where it flows through the historic village of Elmwood and flows under Route 18, is commonly...

, a major tributary of the Taunton River

Taunton River

The Taunton River , is a river in southeastern Massachusetts in the United States. It arises from the confluence of the Town River and Matfield River, in the town of Bridgewater...

.

The Salisbury Plain River flows through the heart of Brockton, Massachusetts

Brockton, Massachusetts

Brockton is a city in Plymouth County, Massachusetts, United States; the population was 93,810 in the 2010 Census. Brockton, along with Plymouth, are the county seats of Plymouth County...

, once a major shoe manufacturing center. The river is formed by several smaller streams, including Trout Brook, Cary Brook, and Salisbury Brook.