Stop River and environs
|- location||Highland Lake, Walpole, MA|
|Charles River, Medfield, MA|
STOP RIVER Latitude and Longitude:
|Length||9.3 miles (15.0 km)|
The Stop River is a low and marshy stream in Medfield, Massachusetts, and partly forming the border between Norfolk and Walpole. The river rises near Highland Lake in Walpole, flows 9.3 miles (15.0 km)  northwards to join the Charles River in Medfield, and ultimately drains into Boston Harbor.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed April 1, 2011