The Merrimack Valley is the region surrounding the Merrimack River in northeastern Massachusetts. Several large, former industrial towns lie on the river, such as Lowell, Lawrence, and Haverhill. The Merrimack River, formed by the confluence of the Pemigewasset River (left) and Winnipesaukee River (right) is shown on a map of the northeastern United States The Merrimack River (or Merrimac River, an earlier spelling that is sometimes still used) is a 110-mile-long (177-kilometer-long) river in... Lowell is the name of several places in the United States of America: Lowell, Arkansas Lowell, Florida Lowell, Indiana Lowell, Maine Lowell, Massachusetts Lowell, Michigan Lowell, North Carolina Lowell, Ohio Lowell, Oregon Lowell, Vermont Lowell, Wisconsin Lowell (town), Wisconsin Lowell Point, Alaska Lowell Township, Michigan Lowell Township, Minnesota Lowell Observatory... // Place names In the United States of America Lawrence, Kansas Lawrence, Massachusetts Lawrence, Michigan Lawrence, New York Lawrence, Wisconsin Lawrence Township, Minnesota Lawrence Township, New Jersey Lawrence Township, Pennsylvania Elsewhere Lawrence, New Zealand Related name variants Several places named Lawrenceburg Several places named Lawrenceville Educational institutions Lawrence Academy at Groton... Haverhill is the name of a number of different places in the world: Haverhill, Suffolk in England Haverhill, Florida Haverhill, Massachusetts Haverhill, New Hampshire This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...