The Merrimack River is a major river in the northeastern United States, flowing approximately 117 miles through New Hampshire and Massachusetts. It originates at the confluence of the Pemigewasset and Winnepesaukee rivers in Franklin, New Hampshire, and eventually empties into the Atlantic Ocean at Newburyport, Massachusetts. The river serves as an important waterway for transportation and recreation. It is known for its scenic beauty, with various parks and trails along its banks. The Merrimack River also supports local wildlife and is a popular spot for fishing, kayaking, and hiking activities.