of the larger remaining orchards include Apple Hill, Cider Hill, Long Hill Orchard, Mann Orchards, and Smolak Farms. Apple picking is a popular pastime in the Merrimack Valley during the late summer and fall months. The Merrimack Valley's leading boarding schools, such as Brooks School in North Andover, Massachusetts; Phillips Academy in Andover, Massachusetts; St. Paul's School in Concord, New Hampshire; and The Governor's Academy in Newbury, Massachusetts, provide cultural institutions to the public, including the Addison Gallery of American Art and the Robert S. Peabody Museum of Archaeology in Andover. Economy Massachusetts The Merrimack Valley in Massachusetts is divided into three New England city and town areas (NECTAs) by the U.S. Office of Management and Budget: Lowell–Billerica–Chelmsford, MA–NH; Lawrence–Methuen Town–North Andover, MA–NH; and Haverhill–Newburyport–Amesbury Town, MA–NH. The M3 Coalition serves several towns that expand the definition. Most large employers are in the sectors of health care and higher education. Institutes of higher learning include Hockey East rivals UMass Lowell and Merrimack College. The region was once a technology hub, reaching its peak during the 1970s and 1980s with corporations such as Wang Laboratories in Lowell among the largest technology employers, though it has since gone defunct. Software company Kronos Incorporated is one of the largest private employers in the region, as is Philips, whose medical division is based in Andover. The defense industry also has had a major presence in the Merrimack Valley, Massachusetts-based Raytheon has several large plants and offices in the Merrimack Valley, and BAE Systems Inc. also employs many people. Due to its proximity to Boston, the region also serves as a bedroom community for employers in Boston. Many major highways (including I-93, I-95, and US 3) and several heavily used lines of the MBTA Commuter Rail system provide easy access to the city from the Merrimack Valley. Attractions include: Chain Bridge (Massachusetts), an historic bridge spanning Amesbury and Newburyport Deer Island (Amesbury, Massachusetts), an island in the Merrimack in Amesbury Haverhill Historical Society Historic District John Greenleaf Whittier Homestead, birthplace of the famous poet Lawrence Heritage State Park Lowell's Boat Shop, the birthplace of the fishing dory Lowell National Historic Park Machine Shop Village District, North Andover Maudslay State Park, a sprawling park in Newburyport along the banks of the Merrimack Museum of Printing, Haverhill Newburyport Historic District Newburyport Harbor Rear Range Light Pawtucket Falls (Massachusetts), famous waterfall in Lowell Plum Island (Massachusetts), a barrier