Definition
The Merrimack River is a 117-mile-long river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee Rivers in Franklin, New Hampshire. From there, it flows south into Massachusetts before emptying into the Atlantic Ocean at Newburyport. Historically, the Merrimack played a crucial role in the Industrial Revolution, powering textile mills and other industries. Today, it's valued for recreation, water supply, and its scenic beauty. Think of it like a natural highway that shaped the economy and culture of the region.