Name County Area[ 2] Estab- lished River / lake / other Image Remarks acres ha Alewife Brook Reservation Middlesex 42°23′48″N 71°8′38″W / 42.39667°N 71.14389°W / 42.39667; -71.14389 (Alewife Brook Reservation ) 136 acres 55 ha 1900 Little Pond, Little River, Alewife Brook A major portion of the Alewife Reservation is designated wetland. The Reservation is located at the end of the Minuteman Bike Path in Arlington Ames Nowell State Park Plymouth 42°7′12.8994″N 70°59′13.632″W / 42.120249833°N 70.98712000°W / 42.120249833; -70.98712000 (Ames Nowell State Park ) 612 acres 248 ha 1959 Cleveland Pond The park is primarily used for boating and fishing. Ashland State Park Middlesex 42°14′30″N 71°27′58″W / 42.24167°N 71.46611°W / 42.24167; -71.46611 (Ashland State Park ) 472 acres 191 ha 1947 Ashland Reservoir Bash Bish Falls State Park Berkshire 42°06′53″N 73°29′34″W / 42.11472°N 73.49278°W / 42.11472; -73.49278 (Bash Bish Falls State Park ) 424 acres 172 ha 1924 Bash Bish Falls Massachusetts' highest single-drop waterfall lies within the park borders. Beartown State Forest Berkshire 42°14′00″N 73°16′28″W / 42.23333°N 73.27444°W / 42.23333; -73.27444 (Beartown State Forest ) 120 acres 49 ha 1921 Benedict Pond Approximately 7.5 miles (12.1 km) of the Appalachian Trail travels through the forest. Beaver Brook Reservation Middlesex 42°23′26″N 71°11′52″W / 42.39056°N 71.19778°W / 42.39056; -71.19778 (Beaver Brook Reservation ) 303 acres 123 ha 1893 The park includes a cascading waterfall and a wading pool. Belle Isle Marsh Reservation Suffolk 42°23′21″N 70°59′21″W / 42.38917°N 70.98917°W / 42.38917; -70.98917 (Belle Isle Marsh Reservation ) 188 acres 76 ha 1978 Belle Isle Marsh The reservation includes landscaped pathways, benches, and an observation tower. A portion of the Boston Harborwalk runs through the reservation. Blackstone River and Canal Heritage State Park Worcester 42°05′40″N 71°37′23″W / 42.09444°N 71.62306°W / 42.09444; -71.62306 (Blackstone River and Canal Heritage State Park ) 1,066 acres 431 ha 1981 Blackstone River The park is the midpoint of the Blackstone River Valley National Heritage Corridor of the National Park System . Blue Hills Reservation Norfolk 42°12′40″N 71°7′40″W / 42.21111°N 71.12778°W / 42.21111; -71.12778 (Blue Hills Reservation ) 6,165 acres 2,495 ha 1893 Houghton's Pond , Ponkapoag Pond The reservation has the distinction of being the largest conservation land within a major metropolitan area. Borderland State Park Bristol , Norfolk 42°4′3″N 71°9′13″W / 42.06750°N 71.15361°W / 42.06750; -71.15361 (Borderland State Park ) 1,843 acres 746 ha 1971 On National Register of Historic Places Boston Harbor Islands State Park Norfolk , Plymouth , Suffolk 42°19′11.6″N 70°55′45.6″W / 42.319889°N 70.929333°W / 42.319889; -70.929333 (Boston Harbor Islands State Park ) 404 acres 163 ha 1996 Boston Harbor Bradley Palmer State Park Essex 42°38′0″N 70°53′43″W / 42.63333°N 70.89528°W / 42.63333; -70.89528 (Bradley Palmer State Park ) 736 acres 298 ha 1944 Ipswich River The park that features rolling meadows, lush evergreens and old carriage roads lined with rhododendrons. Breakheart Reservation Essex , Middlesex 42°29′21″N 71°2′23″W / 42.48917°N 71.03972°W / 42.48917; -71.03972 (Breakheart Reservation ) 652 acres 264 ha 1934 Silver Lake, Pearce Lake, Saugus River The reservation is hardwood forest principally used for birding, fishing and hiking. Brimfield State Forest Hampden 42°6′0″N 72°14′56″W / 42.10000°N 72.24889°W / 42.10000; -72.24889 (Brimfield State Forest ) 3,523 acres 1,426 ha 1924 Dean Pond Bristol Blake State Reservation Norfolk 42°6′28.6″N 71°19′5″W / 42.107944°N 71.31806°W / 42.107944; -71.31806 (Bristol Blake State Reservation ) 140 acres 57 ha 1959[ 3] Kingfisher Pond, Stony Brook Pond, Teal Marsh Adjacent to Stony Brook Wildlife Sanctuary Brook Farm Historic Site Suffolk 42°17′29″N 71°10′26.7″W / 42.29139°N 71.174083°W / 42.29139; -71.174083 (Brook Farm Historic Site ) 141 acres 57 ha 1988 C. M. Gardner State Park Hampden 42°16′31″N 72°52′14.5″W / 42.27528°N 72.870694°W / 42.27528; -72.870694 (C. M. Gardner State Park ) 85 acres 34 ha 1959 Westfield River Callahan State Park Middlesex 42°20′35″N 71°26′55″W / 42.34306°N 71.44861°W / 42.34306; -71.44861 (Callahan State Park ) 958 acres 388 ha 1970 Camp Nihan Environmental Education Camp Essex 42°29′32.6″N 71°1′11.4″W / 42.492389°N 71.019833°W / 42.492389; -71.019833 (Camp Nihan Environmental Education Camp ) 65 acres 26 ha 1929 Saugus River Part of Breakheart Reservation Castle Island Suffolk 42°20′15″N 71°0′38″W / 42.33750°N 71.01056°W / 42.33750; -71.01056 (Castle Island ) 22 acres 8.9 ha Boston Harbor The present fort, built between 1834 and 1851, is the eighth generation of forts and it is one of the oldest fortified sites in British North America. Charles River Reservation Suffolk , Middlesex 42°21′20″N 71°6′56″W / 42.35556°N 71.11556°W / 42.35556; -71.11556 (Charles River Reservation ) 863 acres 349 ha 1910 Charles River Includes Charles River Dam , Charles River Basin and Esplanade, John F. Kennedy Park, and Teddy Ebersol's Red Sox Fields. Covers Charles River below Watertown Dam ; see also Upper Charles River Reservation Chester-Blandford State Forest Hampden 42°14′58″N 72°56′58″W / 42.24944°N 72.94944°W / 42.24944; -72.94944 (Chester-Blandford State Forest ) 2,776 acres 1,123 ha 1924 Chestnut Hill Reservation Suffolk 42°20′7″N 71°9′29″W / 42.33528°N 71.15806°W / 42.33528; -71.15806 (Chestnut Hill Reservation ) 1 acre 0.40 ha 1870 Chestnut Hill Reservoir The Chestnut Hill Reservoir Historic District is considered a nineteenth-century masterpiece of engineering, urban planning and landscape design. Chicopee Memorial State Park Hampden 42°10′45″N 72°32′13″W / 42.17917°N 72.53694°W / 42.17917; -72.53694 (Chicopee Memorial State Park ) 562 acres 227 ha 1893 Cooley Brook Reservoir The park includes two 25-acre (10 ha) ponds. Clarksburg State Park Berkshire 42°44′5″N 73°4′35″W / 42.73472°N 73.07639°W / 42.73472; -73.07639 (Clarksburg State Park ) 3,629 acres 1,469 ha Mauserts Pond Adjoins 3,011 acre Clarksburg State Forest Cochituate State Park Middlesex 42°18′45″N 71°22′27″W / 42.31250°N 71.37417°W / 42.31250; -71.37417 (Cochituate State Park ) 872 acres 353 ha Lake Cochituate Connecticut River Greenway State Park Franklin , Hampden , Hampshire 42°36′27″N 72°32′30″W / 42.60750°N 72.54167°W / 42.60750; -72.54167 (Connecticut River Greenway State Park ) 1,048 acres 424 ha 1986 Connecticut River Multiple state land holdings in the Pioneer Valley of Western Massachusetts Constitution Beach Suffolk 42°23′5.5″N 71°0′36.2″W / 42.384861°N 71.010056°W / 42.384861; -71.010056 (Constitution Beach ) 82 acres 33 ha 1952 Boston Harbor Cutler Park Reservation Norfolk 42°16′16″N 71°11′45″W / 42.27111°N 71.19583°W / 42.27111; -71.19583 (Cutler Park Reservation ) 739 acres 299 ha 1962 Charles River It contains the largest remaining fresh water marsh on the middle Charles, and includes a boardwalk through a cattail marsh out onto an island. D.A.R. State Forest Hampshire 42°27′25″N 72°47′50″W / 42.45694°N 72.79722°W / 42.45694; -72.79722 (D.A.R. State Forest ) 1,728 acres 699 ha 1929 Upper and Lower Highland Lake Demarest Lloyd State Park Bristol 41°31′44″N 70°59′0″W / 41.52889°N 70.98333°W / 41.52889; -70.98333 (Demarest Lloyd State Park ) 200 acres 81 ha 1953 Buzzards Bay Dighton Rock State Park Bristol 41°48′46″N 71°6′23″W / 41.81278°N 71.10639°W / 41.81278; -71.10639 (Dighton Rock State Park ) 98 acres 40 ha 1955 Taunton River Dighton Rock is an 11-foot (3.4 m) high glacial erratic covered with petroglyphs and has since been moved to a museum at the park. Dorchester Shores Reservation Suffolk 42°17′50″N 71°2′44″W / 42.29722°N 71.04556°W / 42.29722; -71.04556 (Dorchester Shores Reservation ) 44 acres 18 ha 1962 Neponset River The reservation comprises two beaches and a park. Douglas State Forest Worcester 42°3′30″N 71°47′13″W / 42.05833°N 71.78694°W / 42.05833; -71.78694 (Douglas State Forest ) 5,525 acres 2,236 ha 1934 Wallum Lake Features include a rare Atlantic White Cedar swamp and 7.8 miles (12.6 km) of the Midstate Trail Dunn State Park Worcester 42°34′48″N 71°58′12″W / 42.58000°N 71.97000°W / 42.58000; -71.97000 (Dunn State Park ) 132 acres 53 ha 1915 Dunn Pond Ellisville Harbor State Park Plymouth 41°50′34″N 70°32′13″W / 41.84278°N 70.53694°W / 41.84278; -70.53694 (Ellisville Harbor State Park ) 97 acres 39 ha 1991 Cape Cod Bay Walking trails overlooking a tidal marsh, sandy/rocky beach at trail end Elm Bank Reservation Norfolk 42°16′34″N 71°18′9″W / 42.27611°N 71.30250°W / 42.27611; -71.30250 (Elm Bank Reservation ) 175 acres 71 ha 1996 Charles River Benjamin Pierce Cheney 's property, now run by Massachusetts Horticultural Society Erving State Forest Franklin 42°37′21″N 72°22′41″W / 42.62250°N 72.37806°W / 42.62250; -72.37806 (Erving State Forest ) 2,422 acres 980 ha 1920 Millers River The 110-mile (180 km) Metacomet-Monadnock Trail passes through a western parcel of the state forest. F. Gilbert Hills State Forest Norfolk 42°3′28″N 71°17′0″W / 42.05778°N 71.28333°W / 42.05778; -71.28333 (F. Gilbert Hills State Forest ) 1,030 acres 420 ha Fall River Heritage State Park Bristol 41°42′20″N 71°9′38″W / 41.70556°N 71.16056°W / 41.70556; -71.16056 (Fall River Heritage State Park ) 14 acres 5.7 ha 1985 Taunton River Federated Women's Club State Forest Worcester 42°29′27″N 72°15′15″W / 42.49083°N 72.25417°W / 42.49083; -72.25417 (Federated Women's Club State Forest ) 970 acres 390 ha 1933 Fever Brook Fort Phoenix State Reservation Bristol 41°37′27″N 70°53′56″W / 41.62417°N 70.89889°W / 41.62417; -70.89889 (Fort Phoenix State Reservation ) 1 acre 0.40 ha Atlantic Ocean Revolutionary War fort; 1/2 mile of Buzzards Bay beachfront Fort Revere Park Plymouth 42°18′17″N 70°54′21″W / 42.30472°N 70.90583°W / 42.30472; -70.90583 (Fort Revere Park ) 6 acres 2.4 ha 1976 Atlantic Ocean On Telegraph Hill in Hull, Massachusetts . Remnants of two seacoast fortifications, water tower with observation deck, military history museum and picnic facilities Francis D. Martini Memorial Shell Park and Moynihan Recreation Area Suffolk 42°14′36″N 71°7′37″W / 42.24333°N 71.12694°W / 42.24333; -71.12694 (Francis D. Martini Memorial Shell Park and Moynihan Recreation Area ) 5.6 acres 2.3 ha Neponset River Outdoor theatre and play fields Freetown-Fall River State Forest Bristol 41°45′28″N 71°3′48″W / 41.75778°N 71.06333°W / 41.75778; -71.06333 (Freetown-Fall River State Forest ) 5,217 acres 2,111 ha 1930 The park includes Profile Rock , a granite outcropping which local Native Americans believe to be the image of Chief Massasoit . Also in the forest is a 227-acre (92 ha) Wampanoag reservation Gardner Heritage State Park Worcester 42°34′38″N 71°59′39″W / 42.57722°N 71.99417°W / 42.57722; -71.99417 (Gardner Heritage State Park ) 0 acres 0 ha 1985 Restored 19th century fire station with exhibits; closed since 2002 Georgetown-Rowley State Forest Essex 42°42′5″N 70°58′26″W / 42.70139°N 70.97389°W / 42.70139; -70.97389 (Georgetown-Rowley State Forest ) 1,041 acres 421 ha Granville State Forest Hampden 42°3′35″N 72°58′17″W / 42.05972°N 72.97139°W / 42.05972; -72.97139 (Granville State Forest ) 2,432 acres 984 ha 1921 Hubbard River Great Brook Farm State Park Middlesex 42°33′21″N 71°21′12″W / 42.55583°N 71.35333°W / 42.55583; -71.35333 (Great Brook Farm State Park ) 909 acres 368 ha 1967 Meadow Pond Greycourt State Park Essex 42°43′46″N 71°10′51″W / 42.72944°N 71.18083°W / 42.72944; -71.18083 (Greycourt State Park ) 24 acres 9.7 ha 2001 The park is built atop the restored ruins of the Charles H. Tenney estate. Halibut Point State Park Essex 42°41′22″N 70°37′59″W / 42.68944°N 70.63306°W / 42.68944; -70.63306 (Halibut Point State Park ) 55 acres 22 ha 1981 Features a former granite quarry and 60-foot (18 m) tower with coastal views Hammond Pond Reservation Middlesex 42°19′30″N 71°10′36″W / 42.32500°N 71.17667°W / 42.32500; -71.17667 (Hammond Pond Reservation ) 59 acres 24 ha 1968 Hampton Ponds State Park Hampden 42°10′45″N 72°41′22″W / 42.17917°N 72.68944°W / 42.17917; -72.68944 (Hampton Ponds State Park ) 47 acres 19 ha Pequot Pond Harold Parker State Forest Essex 42°37′33″N 71°4′54″W / 42.62583°N 71.08167°W / 42.62583; -71.08167 (Harold Parker State Forest ) 3,320 acres 1,340 ha 1916 Stearns Pond Hemlock Gorge Reservation Middlesex 42°18′52″N 71°13′35″W / 42.31444°N 71.22639°W / 42.31444; -71.22639 (Hemlock Gorge Reservation ) 16 acres 6.5 ha 1895 Charles River Holyoke Heritage State Park Hampden 42°12′18″N 72°36′26″W / 42.20500°N 72.60722°W / 42.20500; -72.60722 (Holyoke Heritage State Park ) 7 acres 2.8 ha 1986 The park features include a visitor center with exhibits about paper manufacturing and Holyoke's industrial and cultural history. Hopkinton State Park Middlesex 42°14′57″N 71°31′32″W / 42.24917°N 71.52556°W / 42.24917; -71.52556 (Hopkinton State Park ) 1,245 acres 504 ha 1947 Hopkinton Reservoir The park features a bathing pond for swimming that is physically separated from the reservoir, where nonmotorized boating is permitted Horseneck Beach State Reservation Bristol 41°30′28″N 71°2′55″W / 41.50778°N 71.04861°W / 41.50778; -71.04861 (Horseneck Beach State Reservation ) 815 acres 330 ha 1956 Popular for its two-mile (3 km) long sandy beach on the shore of Buzzards Bay . Also camping, fishing and a salt marsh. Jug End State Reservation and Wildlife Management Area Berkshire 1,191 acres 482 ha 1994 Kenneth Dubuque Memorial State Forest Franklin 7,405 acres 2,997 ha 1997 Hallockville Pond, Crooked Pond Lake Dennison Recreation Area Worcester 121 acres 49 ha Lake Dennison The park is an extension of Otter River State Forest Lake Lorraine State Park Hampden 3 acres 1.2 ha closed to the public Lake Wyola State Park Franklin 42 acres 17 ha 1997 Lake Wyola Lawrence Heritage State Park Essex 50 acres 20 ha 1980 Leominster State Forest Worcester 4,246 acres 1,718 ha 1922 The Midstate Trail runs through the western edge of the forest. Lowell-Dracut-Tyngsboro State Forest Middlesex 1,109 acres 449 ha 1941 Lowell Heritage State Park Middlesex 60 acres 24 ha 1975 Merrimack River Precursor to Lowell National Historical Park ; preserves the city's seminal role in the American Industrial Revolution Lynn Heritage State Park Essex 4 acres 1.6 ha 1986 Lynn Shore Reservation Essex 22 acres 8.9 ha Manuel F. Correllus State Forest Dukes 5,215 acres 2,110 ha 1908 Little Pond In the interior of Martha's Vineyard, the park is the focus of one of the largest environmental restoration projects in the country. Massasoit State Park Bristol 1,207 acres 488 ha Lake Rico, Furnace Pond, King's Pond, Middle Pond, Little Bearhole Pond, and Big Bearhole Pond Maudslay State Park Essex 483 acres 195 ha 1985 Merrimack River Middlesex Fells Reservation Middlesex 2,283 acres 924 ha 1893 Bellevue and Spot Ponds Mohawk Trail State Forest Franklin 7,758 acres 3,140 ha 1921 Includes Cold River Virgin Forest , National Natural Landmark Monroe State Forest Franklin 3,750 acres 1,520 ha 1924 Dunbar Brook Moore State Park Worcester 737 acres 298 ha Eames Pond Mount Everett State Reservation Berkshire 2,492 acres 1,008 ha 1908 Guilder Pond Mount Grace State Forest Franklin 1,578 acres 639 ha 1920 Mount Grace Mount Greylock State Reservation Berkshire 12,455 acres 5,040 ha 1898 Mount Holyoke Range State Park Hampshire 3,000 acres 1,200 ha 1940 Mount Sugarloaf State Reservation Franklin 533 acres 216 ha 1907 Mount Tom State Reservation Hampden 1,967 acres 796 ha 1902 Mount Washington State Forest Berkshire 4,619 acres 1,869 ha 1958 Myles Standish Monument State Reservation Plymouth 30 acres 12 ha 1920 A 120-foot (37 m) tower with 125 steps that overlooks Plymouth Harbor and Duxbury Beach. Myles Standish State Forest Plymouth 12,029 acres 4,868 ha 1916 Pitch pine and scrub oak forest with sixteen ponds for fishing, canoeing, swimming. Camping on four of the ponds, bicycle trails, equestrian trails, and horse camping. Mystic River Reservation Middlesex 359 acres 145 ha 1893 Mystic Lakes ; Mystic River Nahant Beach Reservation Essex 67 acres 27 ha Atlantic Ocean Nantasket Beach Reservation Plymouth 39 acres 16 ha Nasketucket Bay State Reservation Plymouth 210 acres 85 ha 1999 Natural Bridge State Park Berkshire 44 acres 18 ha 1985 Hudson Brook It contains the only natural white marble arch/bridge in North America. The natural bridge spanning Hudson Brook, was formed by glacial melt about 11,000 BC, from 550 million year old bedrock. Neponset River Reservation Suffolk 1,880 acres 760 ha Nickerson State Park Barnstable 1,967 acres 796 ha 1934 Cliff Pond October Mountain State Forest Berkshire 16,460 acres 6,660 ha 1915 Otter River State Forest Worcester 1,022 acres 414 ha 1915 Otter River , Millers River Pearl Hill State Park Middlesex 1,000 acres 400 ha Park Hill Brook Pilgrim Memorial State Park Plymouth 6 acres 2.4 ha 1920 Site of Plymouth Rock Pittsfield State Forest Berkshire 10,601 acres 4,290 ha Pope John Paul II Park Reservation Suffolk 66 acres 27 ha 2001 Neponset River Estuary Reclaimed former landfill and commercial area Purgatory Chasm State Reservation Worcester 100 acres 40 ha 1919 The Chasm was created when glacial meltwater from a burst ice dam ripped out blocks of bedrock at the end of the last Ice Age (14,000 years ago). Quabbin Reservoir Hampshire 39 sq mi 100 km2 1938 Quincy Quarries Reservation Norfolk 22 acres 8.9 ha 1985 Quincy Shores Reservation Norfolk 87 acres 35 ha 1899 Quinsigamond State Park Worcester 38 acres 15 ha Revere Beach Reservation Suffolk 84 acres 34 ha 1896 Robinson State Park Hampden 1,025 acres 415 ha 1934 Westfield River Roxbury Heritage State Park Suffolk 3 acres 1.2 ha 1992 The 1750 Dillaway-Thomas House and a small park Rumney Marsh Reservation Essex , Suffolk 815 acres 330 ha 1992 Saugus River ; Pines River Rutland State Park Worcester 284 acres 115 ha Whitehall Pond Swimming, picnicking and boating. Salisbury Beach State Reservation Essex 355 acres 144 ha 1931 The park's main feature is its 3.8-mile (6.1 km)-long beach, one of the most popular in the Commonwealth. Sandisfield State Forest Berkshire 4,190 acres 1,700 ha York Lake Sandy Point State Reservation Essex 134 acres 54 ha Savoy Mountain State Forest Berkshire 10,457 acres 4,232 ha 1918 Scusset Beach State Reservation Barnstable 459 acres 186 ha 1957 On Cape Cod Bay at the east end of the Cape Cod Canal , a popular swimming and camping area. Shawme-Crowell State Forest Barnstable 624 acres 253 ha Forested 285 site campground J.A. Skinner State Park Hampshire 843 acres 341 ha 1940 Connecticut River South Cape Beach State Park Barnstable 460 acres 190 ha A component of the Waquoit Bay National Estuarine Research Reserve with a one-mile (1.6 km) stretch of beach. Southwest Corridor Park Suffolk 221 acres 89 ha 1987 Greenway of 4.7 miles (7.6 km) that runs South End, Back Bay, Roxbury and Jamaica Plain neighborhoods Spencer State Forest Worcester 903 acres 365 ha 1922 Howe Pond Squantum Point Park Norfolk 46 acres 19 ha 2001 Stony Brook Reservation Suffolk 616 acres 249 ha 1894 Turtle Pond Streeter Point Recreation Area Worcester 1 acre 0.40 ha East Brimfield Reservoir Fishing, swimming, picnicking Sudbury Reservoir Middlesex ; Worcester 4,943 acres 2,000 ha 1898 Sudbury Reservoir Tolland State Forest Berkshire 4,415 acres 1,787 ha 1925 Otis Reservoir Upper Charles River Reservation Middlesex , Norfolk , Suffolk 863 acres 349 ha Charles River Covers Charles River between Watertown Dam and Riverdale Park, West Roxbury ; see also Charles River Reservation Upton State Forest Worcester 2,790 acres 1,130 ha 1915 Has Civilian Conservation Corps structures Wachusett Mountain State Reservation Worcester 2,288 acres 926 ha 1899 Wachusett Reservoir Worcester 4,135 acres 1,673 ha 1908 Nashua River ; Quinapoxet River Wahconah Falls State Park Berkshire 48 acres 19 ha Wahconah Falls Brook Walden Pond State Reservation Middlesex 335 acres 136 ha 1922 Walden Pond Waquoit Bay National Estuarine Research Reserve Barnstable 110 acres 45 ha 1987 Waquoit Bay ; Quashnet River ; Childs River ; ponds Ware River Watershed Area Worcester 23,000 acres 9,300 ha Watson Pond State Park Bristol 163 acres 66 ha Webb Memorial State Park Norfolk 59 acres 24 ha 1980 Hingham Bay Wells State Park Worcester 1,445 acres 585 ha 1968 Walker Pond Wendell State Forest Franklin 7,566 acres 3,062 ha 1921 Millers River , Quabbin Reservoir Western Gateway Heritage State Park Berkshire 8 acres 3.2 ha 1986 Weymouth Back River Reservation Norfolk 35 acres 14 ha Site of Stodder's Neck and Abigail Adams Park Whitehall State Park Middlesex 837 acres 339 ha 1947 Whitehall Reservoir Willard Brook State Forest Middlesex 2,929 acres 1,185 ha 1930 Willowdale State Forest Essex 2,491 acres 1,008 ha Hood Pond Wilson Mountain Reservation Norfolk 215 acres 87 ha 1995 Windsor State Forest Berkshire 1,824 acres 738 ha 1925 Westfield River Winthrop Shore Reservation Suffolk 18 acres 7.3 ha 1900 Atlantic Ocean Wompatuck State Park Plymouth 3,579 acres 1,448 ha 1967 Aaron River Reservoir