The Quinsigamond River is a river in central Massachusetts

Central Massachusetts

Central Massachusetts is the geographically central region of Massachusetts. Though definitions vary, most include all of Worcester County and the northwest corner of Middlesex County. Worcester, the largest city in the area and the seat of Worcester County, is often considered the cultural capital...

. It is a tributary of the Blackstone River

Blackstone River

The Blackstone River is a river in the U.S. states of Massachusetts and Rhode Island. It flows approximately 48 mi and drains a watershed of approximately 540 sq. mi...

 and ultimately drains into Narragansett Bay

Narragansett Bay

Narragansett Bay is a bay and estuary on the north side of Rhode Island Sound. Covering 147 mi2 , the Bay forms New England's largest estuary, which functions as an expansive natural harbor, and includes a small archipelago...

.

Although the Quinsigamond has many small tributaries and drains a sizable area, the river proper is only 5.6 miles (9 km) long. It flows roughly southwards from its origin at Lake Quinsigamond

Lake Quinsigamond

Lake Quinsigamond is a body of water situated between the city of Worcester and the town of Shrewsbury in Worcester County, Massachusetts, USA. It is 4 miles long, between 50 and 85 feet deep, and has a surface area of approximately 772 acres . Lake Quinsigamond hosts 8 islands with the...

 at Worcester

Worcester, Massachusetts

Worcester is a city and the county seat of Worcester County, Massachusetts, United States. Named after Worcester, England, as of the 2010 Census the city's population is 181,045, making it the second largest city in New England after Boston....

's eastern edge, past North Grafton where Bummet Brook enters, through Lake Ripple northwest of Grafton

Grafton, Massachusetts

Grafton is a town in Worcester County, Massachusetts, United States. The population was 17,765 at the 2010 census. Grafton is the home of a Nipmuc village known as Hassanamisco Reservation, the Willard House and Clock Museum, and the Tufts University Cummings School of Veterinary Medicine...

, and into Fisherville Pond at Fisherville, where it merges into the Blackstone River

Blackstone River

The Blackstone River is a river in the U.S. states of Massachusetts and Rhode Island. It flows approximately 48 mi and drains a watershed of approximately 540 sq. mi...

.