North Nashua River

Worcester County, Massachusetts.

North Nashua River midpoint in Leominster, Massachusetts.

North Nashua River ends in South Lancaster, Massachusetts.

230 feet (70 meters)

19.32 miles long (31.10 kilometers)

About The North Nashua River

North Nashua River is a River located in Worcester County, MA. Starting in Fitchburg, MA the North Nashua River flows 19 miles through Leominster, MA before ending in South Lancaster, MA. The North Nashua River rises to an elevation of 230 feet. Find maps, fishing guides, weather and recreation information at Guidesly.


About North Nashua River, MA

The North Nashua River is located in the north of Massachusetts. West of Fitchburg and Westminster, the river rises from the Whitman River and Phillips Brook. The river flows 19.9 miles southeastward through Leominster State Forest and agricultural fields and links up with the South Nashua River at Lancaster about 5 miles below its consignment from the Wachusett Reservoir, forming the Nashua River.

The river was heavily used during the colonial period for the industry, resulting in pollution invading it around the late 18th and early 19th centuries. Most of the pollution was caused by paper mills and dyes that were used during that time, causing the river to discolor. Activist Marion Stoddart initiated the cleanup and treatment of the entire Nashua River, setting up eight treatment plants and upgrading existing ones with federal help.

Monoosnoc Brook, Phillips Brook, Wekepeke Brook, Fall Brook, Falulah or Baker Brook, Flag Brook, and Whitman River are part of North Nashua River’s tributaries. It secures discharges from the East Fitchburg and Leominster Wastewater Treatment Plants, as well as sto