The Squannacook River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data
The National Map
accessed October 3, 2011 river in northern

Massachusetts Massachusetts (Massachusett: ''Muhsachuweesut Massachusett_writing_systems.html" ;"title="nowiki/> məhswatʃəwiːsət.html" ;"title="Massachusett writing systems">məhswatʃəwiːsət">Massachusett writing systems">məhswatʃəwiːsət'' En ...

. It is a tributary of the

Nashua River The Nashua River, long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed October 3, 2011 is a tributary of the Merrimack River in Massachusetts and New Hampshire in the United States. It i ...

and part of the

Merrimack River The Merrimack River (or Merrimac River, an occasional earlier spelling) is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into M ...

watershed flowing to the Atlantic Ocean. The river rises within West Townsend,

, at the juncture of Walker Brook, Locke Brook, and Willard Brook. Walker and Locke Brooks rise within Greenville, New Ipswich, and

Mason, New Hampshire Mason is a town in Hillsborough County, New Hampshire, United States. The population was 1,448 at the 2020 census. Mason, together with Wilton, is home to Russell-Abbott State Forest. History Mason was first known as "Number One", the easternmos ...

, while Willard Brook rises in

Ashby, Massachusetts Ashby is a town in Middlesex County, Massachusetts, United States. The population was 3,193 at the 2020 census, which makes it the least populous municipality in Middlesex County. The Town of Ashby is primarily a bedroom community consisting almo ...

. The Squannacook flows east and southeast through Townsend and West Groton, Massachusetts, and joins the Nashua River in wetlands just east of Woodsville. The river is dammed three times in Townsend and twice in West Groton. Its watershed covers , of which 18% is permanently protected. It has been designated an Outstanding Resource Water. There has been a conversion of one of the former mills on the Groton portion of the river. The former E.H. Sampson Leather Board Mill became a senior citizen/ nursing home. Riverside is located next to West Groton Square.

References

Nashua River Watershed

TopoQuest
location for source of the Squannacook;

U.S. Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and ...

Ashburnham, Massachusetts 7.5-minute quadrangle (1988). {{authority control Rivers of Middlesex County, Massachusetts Tributaries of the Merrimack River Rivers of Massachusetts Wild and Scenic Rivers of the United States

See also

References