Concord River
| Concord River | |
|---|---|
The Concord River at the Old North Bridge, Concord, Massachusetts, circa 1900 | |
| Location | |
| Country | United States |
| Physical characteristics | |
| Source | |
| • location | Sudbury and Assabet Rivers, Concord, Massachusetts |
| • coordinates | 42°27′55″N 71°21′29″W / 42.4654°N 71.3580°W |
| • elevation | 50 ft (15 m) |
| Mouth | |
• location | Merrimack River, Lowell, Massachusetts |
• coordinates | 42°38′47″N 71°18′09″W / 42.6465°N 71.3025°W |
| Length | 16.3 mi (26.2 km) |
| Basin size | 377 mi2 (980 km2) |
| Type | Recreational |
| Designated | April 9, 1999 |
The Concord River is a 16.3-mile-long (26.2 km) tributary of the Merrimack River in eastern Massachusetts, United States. The river drains a small rural, suburban region northwest of Boston. As one of the most notable small rivers in U.S. history, it was the scene of an important early battle of the American Revolutionary War and was the subject of a 19th-century book by Henry David Thoreau.