The Merrimack Valley is a region in northeastern Massachusetts and southern New Hampshire, named after the Merrimack River that flows through it. This area is known for its rich history, including its role in the American Industrial Revolution, with cities like Lowell and Lawrence becoming centers of textile manufacturing. Today, the Merrimack Valley features a mix of urban and suburban communities, offering various recreational activities along the river and in local parks. The region is also home to several educational institutions, including UMass Lowell, contributing to its vibrant culture and economy.