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The Merrimack River watershed covers 5,010 square miles (12,980 km 2) in southern New Hampshire and northeastern Massachusetts. [9] It is the fourth largest river basin in New England. [10] The river begins in the city of Franklin, New Hampshire, at the confluence of the Pemigewasset and Winnipesaukee rivers.
Merrimack River, stream in the northeastern United States, rising in the White Mountains of central New Hampshire at the confluence of the Pemigewasset and Winnipesaukee rivers and flowing southward into Massachusetts, then northeastward to its mouth on the Atlantic Ocean.
- The Editors of Encyclopaedia Britannica
Apr 23, 2024 · The web page provides background information on the Merrimack River, its water quality, and its permits and enforcement. It does not include a map of the river or its watershed.
Learn about the Merrimack River watershed, its towns, organizations, tributaries, and activities. Find maps, directions, and information for paddling, boating, fishing, and more on the river.
Apr 23, 2024 · EPA created an interactive StoryMap that highlights maps and important themes such as flooding risk, water quality risks from developed land, and a new section on water quality monitoring resources for the Merrimack River Watershed.
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Sep 4, 2020 · This web page provides an overview of a field study conducted by USGS and MassDEP to evaluate water quality conditions in the lower Merrimack River from May to September 2020. It includes a map of the river and its sampling stations, as well as information on the river's ecological and conservation value.
Explore the 117-mile-long Merrimack River in New Hampshire and Massachusetts, with a printable map, fishing regulations, and stream gauge data. Find trails, boat launches, fishing accesses, and beaches along the river.
