Blackwater River (Contoocook tributary)

Image source: Ken Gallager
General data
- Name: Blackwater River (Contoocook tributary)
- Water system: Merrimack River
- Water type: River
- Progression: Contoocook River -> Merrimack River -> Gulf of Maine -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Description
The Blackwater River is a 37.5-mile-long (60.4 km) river located in central New Hampshire in the United States. It is a tributary of the Contoocook River, part of the Merrimack River watershed.