Souhegan River
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The Souhegan River is a tributary 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 ...
in the northeastern United States. It is long, with a drainage area of , and flows north and east through southern
New Hampshire New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
to the Merrimack River. The river begins in
New Ipswich, New Hampshire New Ipswich is a town in Hillsborough County, New Hampshire, United States. The population was 5,204 at the 2020 census. New Ipswich, situated on the Massachusetts border, includes the villages of Bank, Davis, Gibson Four Corners, Highbridge, New ...
, at the junction of the river's South Branch and
West Branch West Branch may refer to: Communities * West Branch, Iowa, city in Cedar and Johnson counties * West Branch, Michigan, city in Ogemaw County * West Branch, New Brunswick, in the Local Service District of Weldford Parish * West Branch River John, i ...
. Flowing northeast, it passes through the center of Greenville and descends through a narrow valley to Wilton, where it turns east. The river valley broadens below Wilton, and the river passes through the center of
Milford Milford may refer to: Place names Canada * Milford (Annapolis), Nova Scotia * Milford (Halifax), Nova Scotia * Milford, Ontario England * Milford, Derbyshire * Milford, Devon, a place in Devon * Milford on Sea, Hampshire * Milford, Shro ...
, crosses the southern portion of Amherst, and enters the town of Merrimack. Shortly upstream of the town center, the river passes over Wildcat Falls, then crosses under the
Everett Turnpike The Frederick E. Everett Turnpike, also called the Central New Hampshire Turnpike, is a toll road in the U.S. state of New Hampshire, running from the Massachusetts border at Nashua north to Concord. The Everett Turnpike is named for Frederick ...
and
U.S. Route 3 U.S. Route 3 (US 3) is a United States highway running from Cambridge, Massachusetts, through New Hampshire, to the Canada–US border near Third Connecticut Lake, where it connects to Quebec Route 257. Massachusetts Route 3 connects to ...
to reach the Merrimack River. The river is used for water supplies, a small amount of
hydropower Hydropower (from el, ὕδωρ, "water"), also known as water power, is the use of falling or fast-running water to Electricity generation, produce electricity or to power machines. This is achieved by energy transformation, converting the Pot ...
, and recreation. There are 28 threatened or
endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
sharing the watershed with 35,000 people. It is part of the New Hampshire Rivers Management Protection Program. It was one of two rivers studied by the New Hampshire Department of Environmental Services to reach data and recommendations about allowable "instream flow".NHDES Souhegan River instream flow study
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Etymology

The name "Souhegan" comes from the language of the Native American
Algonquins The Algonquin people are an Indigenous people who now live in Eastern Canada. They speak the Algonquin language, which is part of the Algonquian language family. Culturally and linguistically, they are closely related to the Odawa, Potawatomi ...
, meaning "waiting and watching place". Tribal fishermen set
weirs A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of l ...
across the rapids, and then waited and watched for fish, including
salmon Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...
,
alewives The alewife (''Alosa pseudoharengus'') is an anadromous species of herring found in North America. It is one of the "typical" North American shads, attributed to the subgenus ''Pomolobus'' of the genus ''Alosa''. As an adult it is a marine spe ...
, sturgeon, and
eel Eels are ray-finned fish belonging to the order Anguilliformes (), which consists of eight suborders, 19 families, 111 genera, and about 800 species. Eels undergo considerable development from the early larval stage to the eventual adult stage ...
s.
Souhegan High School Souhegan Cooperative High School () is a Coalition of Essential Schools high school located in Amherst, New Hampshire, in the United States. Students from Amherst and Mont Vernon attend Souhegan for 9th through 12th grades. There are about 750 st ...
, which serves the towns of Amherst and Mont Vernon, is named after the river. The name of Skowhegan, Maine, comes from the same term.


See also

*
List of rivers of New Hampshire This is a list of rivers and significant streams in the U.S. state of New Hampshire. All watercourses named "River" (freshwater or tidal) are listed here, as well as other streams which are either subject to thNew Hampshire Comprehensive Shorelan ...


References


External links


Souhegan Watershed Association

Souhegan River river gauge
United States 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, ...
{{authority control Rivers of Hillsborough County, New Hampshire Rivers of New Hampshire Tributaries of the Merrimack River New Hampshire placenames of Native American origin