The Squannacook River is a 16.4-mile-long (26.4 km) river in northern Massachusetts. It is a tributary of the Nashua River and part of the Merrimack River watershed flowing to the Atlantic Ocean.
The river rises within West Townsend, Massachusetts, at the juncture of Walker Brook, Locke Brook, and Willard Brook. Walker and Locke Brooks rise within Greenville, New Ipswich, and Mason, New Hampshire, while Willard Brook rises in Ashby, Massachusetts. The Squannacook flows east and southeast through Townsend and West Groton, Massachusetts, and joins the Nashua River in wetlands just east of W...
Click any point for details. Sections without stored geometry are drawn as straight put-in → take-out lines — actual courses follow the river.