Visitor Centers in Merrimack ValleyTotal found in this region of Massachusetts: 7Haverhill Historical Society & Buttonwood Museum 240 Water Street Haverhill, MA Lawrence Heritage State Park Visitor Center 1 Jackson Street Lawrence, MA Lowell National Historical Park Visitor Center 246 Market Street Lowell, MA Maria Miles Massachusetts Visitor Information Center I-95 (southbound) Salisbury, MA Massachusetts Visitor Center I-495 (northbound between exits 32 & 33) Chelmsford, MA Middlesex Canal Museum Visitor Center 71 Faulkner Street Billerica, MA Parker River National Wildlife Refuge Visitor Center 6 Plum Island Tnpk. Newburyport, MA |