Shawsheen River

General data
- Name: Shawsheen River
- Water system: Merrimack River
- Water type: River
- Progression: Merrimack River -> Gulf of Maine -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Description
The Shawsheen River is a 26.7-mile-long (43.0 km) tributary of the Merrimack River in northeast Massachusetts.