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Geography Home Browse by State Browse by Feature Definitions Top 10 |
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Geography Home Browse by State Browse by Feature Definitions Top 10 |
Massachusetts Swamp
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Feature Name
|
County
|
Latitude
|
Longitude
|
| Abbey Swamp | Berkshire | 42.13944 | -73.15889 |
| Acushnet Cedar Swamp | Bristol | 41.69444 | -70.96111 |
| Adam Swamp | Hampshire | 42.26667 | -72.82222 |
| Albee Meadow | Worcester | 42.6875 | -72.2625 |
| Alder Meadow | Worcester | 42.22083 | -71.9625 |
| Allen Swamp | Worcester | 42.20972 | -72.06111 |
| Allens Pond Marshes | Bristol | 41.51472 | -71.48833 |
| Angerman Swamp | Berkshire | 42.24167 | -73.15417 |
| Annisquam River Marshes | Essex | 42.63972 | -70.68917 |
| Apponagansett Swamp | Bristol | 41.6625 | -70.97361 |
| Arnold Meadow | Norfolk | 42.2075 | -70.99722 |
| Ash Swamp | Essex | 42.77639 | -70.96944 |
| Aucoot Cove Marshes | Plymouth | 41.68139 | -70.76306 |
| Back Bay Fens | Suffolk | 42.35139 | -71.09306 |
| Back River Marshes | Barnstable | 41.73056 | -70.60667 |
| Bad Luck Swamp | Bristol | 41.83611 | -71.21111 |
| Ball Swamp | Worcester | 42.20417 | -72.15 |
| Bangs Bog | Plymouth | 41.75833 | -70.65222 |
| Barnum Street Swamp | Berkshire | 42.09167 | -73.36667 |
| Bartlett Swamp | Worcester | 42.49167 | -71.8125 |
| Bartletts Marsh (historical) | Plymouth | 41.79444 | -70.62917 |
| Bass Hole Marshes | Barnstable | 41.72667 | -70.23778 |
| Bass Swamp | Franklin | 42.69167 | -72.37639 |
| Batemans Pond Swamp | Middlesex | 42.48333 | -71.37222 |
| Bay View Marshes | Bristol | 41.57361 | -70.9625 |
| Bayberry Swamp | Essex | 42.59167 | -70.78833 |
| Bear Meadow | Plymouth | 42.075 | -70.92083 |
| Bear Swamp | Berkshire | 42.24861 | -73.25556 |
| Beaton Bog | Barnstable | 41.67361 | -70.60333 |
| Beaverdam Swamp | Essex | 42.59444 | -70.7625 |
| Beech Hill Swamp | Plymouth | 42.1 | -70.89306 |
| Beetle Swamp | Dukes | 41.38472 | -70.53417 |
| Belle Isle Inlet Marshes | Suffolk | 42.3875 | -70.99139 |
| Benson Pond Bogs | Plymouth | 41.82667 | -70.77583 |
| Birch Swamp | Bristol | 41.75139 | -71.25833 |
| Black Flats | Barnstable | 41.7325 | -70.22083 |
| Black Pond Swamp | Plymouth | 42.1875 | -70.81389 |
| Black Rock Creek | Essex | 42.99917 | -70.82611 |
| Black Swamp | Franklin | 42.65 | -72.37778 |
| Blackfish Creek Marshes | Barnstable | 41.91194 | -69.98806 |
| Blackington Swamp | Franklin | 42.53472 | -72.28972 |
| Blacks Creek Marshes | Norfolk | 42.26889 | -71.00417 |
| Blackwater River Marshes | Essex | 42.85667 | -70.82833 |
| Blood Swamp | Worcester | 42.4 | -72.02639 |
| Bluefish River Marshes | Plymouth | 42.04333 | -70.67861 |
| Boat Meadow Bog | Barnstable | 41.81056 | -69.98889 |
| Bogastere Swamp | Middlesex | 42.20083 | -71.39167 |
| Bolton Cedar Swamp | Bristol | 41.75 | -70.95417 |
| Bond Hollow Swamp | Worcester | 42.14333 | -71.7575 |
| Bourne Cove Marshes | Plymouth | 41.72889 | -70.69139 |
| Briar Swamp | Essex | 42.65278 | -70.64167 |
| Bridge Brook Swamp | Middlesex | 42.39167 | -71.375 |
| Broad Marsh | Plymouth | 41.74611 | -70.68333 |
| Broad Meadow | Norfolk | 42.18472 | -71.02083 |
| Broad Meadow Swamp | Middlesex | 42.33639 | -71.52444 |
| Browns Swamp | Middlesex | 42.54167 | -71.51667 |
| Bryant Swamp | Middlesex | 42.41667 | -71.23889 |
| Bucks Creek Marshes | Barnstable | 41.67556 | -70.00472 |
| Bumpus Bog | Plymouth | 41.80694 | -70.74028 |
| Bungay Swamp | Norfolk | 42.025 | -71.44167 |
| Bunker Meadows | Essex | 42.62778 | -70.92222 |
| Burnt Meadow Swamp | Middlesex | 42.61944 | -71.51667 |
| Burnt Plain Swamp | Plymouth | 42.17361 | -70.83333 |
| Burnt Swamp | Nantucket | 41.26944 | -70.11944 |
| Cape Poge Bay Marshes | Dukes | 41.38694 | -70.47056 |
| Carmichael Swamp | Middlesex | 42.58056 | -71.50417 |
| Carver Bog | Plymouth | 41.82556 | -70.70417 |
| Castle Neck River Marshes | Essex | 42.66889 | -70.77944 |
| Casual Swamp | Bristol | 41.84167 | -71 |
| Catamount Swamp | Franklin | 42.53056 | -72.45833 |
| Cedar Swamp | Bristol | 41.75417 | -71.035 |
| Chandler Swamp | Middlesex | 42.46528 | -71.22778 |
| Chubb Creek Marshes | Essex | 42.56611 | -70.79556 |
| Cold Brook Meadow | Middlesex | 42.41667 | -71.38333 |
| Cold Spring Swamp (historical) | Middlesex | 42.32778 | -71.21194 |
| Colebrook Swamp | Bristol | 41.67639 | -71.01528 |
| Columbia Bogs | Plymouth | 42.02472 | -70.83583 |
| Concord River Swamp | Middlesex | 42.48472 | -71.31944 |
| Coolidge Swamp | Franklin | 42.58056 | -72.34306 |
| Copicut Swamp | Bristol | 41.73333 | -71.04167 |
| Cow Pond Meadow | Middlesex | 42.6 | -71.51944 |
| Craigville Marshes | Barnstable | 41.64028 | -70.33889 |
| Cranberry Swamp | Franklin | 42.57639 | -72.89167 |
| Crane Meadow | Middlesex | 42.32861 | -71.57361 |
| Crane Swamp | Worcester | 42.30556 | -71.59306 |
| Crapo Bog | Bristol | 41.9125 | -71.11944 |
| Cushing Swamp | Worcester | 42.33472 | -71.71056 |
| Dapping Brook Swamp | Middlesex | 42.21083 | -71.40222 |
| Dead Swamp | Bristol | 41.95139 | -71.05417 |
| Deerfield Swamp | Bristol | 41.61528 | -71.02361 |
| Dexter Bog | Barnstable | 41.74944 | -70.505 |
| Diamond Creek Marshes | Suffolk | 42.42444 | -70.99639 |
| Dirty Meadow Swamp | Middlesex | 42.21639 | -71.40278 |
| Douglas Cedar Swamp | Worcester | 42.04583 | -71.775 |
| Duck Harbor | Barnstable | 41.94861 | -70.07083 |
| Duxbury Marsh | Plymouth | 42.06111 | -70.66667 |
| Dyleave Swamp | Nantucket | 41.28889 | -70.0375 |
| Eagle Hill River Marshes | Essex | 42.69583 | -70.83444 |
| Eel Point Marsh | Nantucket | 41.29167 | -70.2 |
| Eel Pond Marshes | Dukes | 41.39639 | -70.51583 |
| Essex Bay Marshes | Essex | 42.65667 | -70.74611 |
| Fall Hill Meadow | Franklin | 42.60833 | -72.31778 |
| Farm Creek Marshes | Essex | 42.65194 | -70.70917 |
| Farm Pond Marshes | Dukes | 41.44528 | -70.55722 |
| Featherbed Swamp | Barnstable | 41.97889 | -70.02083 |
| Federal Bogs | Plymouth | 41.86667 | -70.71667 |
| Fisher Meadow | Norfolk | 42.21944 | -71.22639 |
| Fiske Bogs | Plymouth | 41.79583 | -70.72111 |
| Flag Swamp | Bristol | 41.68333 | -70.99306 |
| Flagg Swamp | Middlesex | 42.36111 | -71.57778 |
| Flaggy Meadow | Plymouth | 42.0125 | -71.03056 |
| Flat Pond Marshes | Barnstable | 41.55583 | -70.49833 |
| Flat Swamp | Plymouth | 41.86 | -70.53917 |
| Flurcum Swamp | Worcester | 42.59167 | -71.69361 |
| Folgers Marsh | Nantucket | 41.29361 | -70.04306 |
| Forbes Swamp | Plymouth | 41.80278 | -70.80833 |
| Forest River Marshes | Essex | 42.49222 | -70.89833 |
| Fowl Meadows | Norfolk | 42.2375 | -71.12778 |
| Fox Creek Marshes | Essex | 42.68472 | -70.78722 |
| Fuller Swamp | Franklin | 42.51528 | -72.61111 |
| Fullers Marsh | Barnstable | 41.60556 | -70.45667 |
| Garland Bog | Plymouth | 41.77889 | -70.61944 |
| Geisler Swamp | Berkshire | 42.2 | -73.13333 |
| George Easton Swamps | Nantucket | 41.26333 | -70.15417 |
| Gibbs Bog | Plymouth | 41.775 | -70.60278 |
| Gibbs Swamp | Nantucket | 41.27083 | -70.00833 |
| Gobernor Meadow | Norfolk | 42.06389 | -71.26667 |
| Good Harbor Beach Marshes | Essex | 42.62222 | -70.70528 |
| Grass Pond Bog | Barnstable | 41.675 | -70.075 |
| Great Black Swamp | Norfolk | 42.15833 | -71.38694 |
| Great Cedar Swamp | Norfolk | 42.2125 | -71.04583 |
| Great Meadows | Middlesex | 42.48056 | -71.32222 |
| Great Sippewisset Marsh | Barnstable | 41.5875 | -70.64111 |
| Great Swamp | Barnstable | 42.0175 | -70.08528 |
| Green Harbor Marsh | Plymouth | 42.09583 | -70.66667 |
| Green Harbor River Harshes | Plymouth | 42.08778 | -70.69083 |
| Greene Swamp | Franklin | 42.45 | -72.54722 |
| Guinea Meadow | Middlesex | 42.26306 | -71.40556 |
| Guinea Meadow Swamp | Middlesex | 42.255 | -71.42111 |
| Gurney Bogs | Plymouth | 41.78972 | -70.67139 |
| Hackmatack Swamp | Hampshire | 42.21444 | -72.72167 |
| Hale Swamp | Berkshire | 42.22639 | -73.17278 |
| Hall Swamp | Worcester | 42.33389 | -72.1075 |
| Hammond Bogs | Plymouth | 41.75194 | -70.64639 |
| Harris Swamp | Franklin | 42.62639 | -72.35 |
| Harwich Bogs | Plymouth | 41.805 | -70.74528 |
| Haskell Swamp | Plymouth | 41.72417 | -70.83306 |
| Hathaway Swamp | Bristol | 41.725 | -70.93472 |
| Hauk Swamp | Middlesex | 42.675 | -71.51861 |
| Hawk Meadow | Essex | 42.72222 | -70.94722 |
| Hawley Swamp | Hampshire | 42.41111 | -72.50694 |
| Hayden Swamp | Berkshire | 42.23056 | -73.14167 |
| Hedges Bog | Plymouth | 41.83139 | -70.55972 |
| Hell Swamp | Plymouth | 42.1375 | -70.85139 |
| Hemingway Swamp | Worcester | 42.4 | -72.19167 |
| Hemlock Swamp | Bristol | 41.91667 | -71.2125 |
| Herring River Marshes | Barnstable | 41.82056 | -69.99611 |
| Higgins Swamp | Worcester | 42.425 | -72.15 |
| High Pines Marshes | Plymouth | 42.03611 | -70.62611 |
| Hiley Meadows | Middlesex | 42.43889 | -71.54444 |
| Hiller Cove Marshes | Plymouth | 41.66528 | -70.76306 |
| Hobomock Swamp | Bristol | 41.725 | -70.9625 |
| Hockomock Swamp | Bristol | 41.99167 | -71.07917 |
| Hog Swamp | Worcester | 42.4 | -71.6125 |
| Holbrook Swamp | Worcester | 42.39583 | -71.89583 |
| Holly Marsh | Barnstable | 41.58472 | -70.46583 |
| Home Meadows | Plymouth | 42.24028 | -70.88056 |
| Hoop Pole Swamp | Plymouth | 42.16667 | -70.82222 |
| Houghton Swamp | Worcester | 42.41667 | -72.13333 |
| Hundred Acre Meadow | Middlesex | 42.55694 | -71.11944 |
| Indian Neck Marshes | Barnstable | 41.91333 | -70.01778 |
| Ipswich River Marshes | Essex | 42.69333 | -70.81278 |
| Iron Ore Bog | Middlesex | 42.40833 | -71.43889 |
| Iron Ore Swamp | Middlesex | 42.52 | -71.31944 |
| Jackson Swamp | Hampshire | 42.3425 | -72.89444 |
| James Pond Marshes | Dukes | 41.44056 | -70.67667 |
| Jenney Bogs | Plymouth | 41.77917 | -70.68972 |
| Jones River Marshes | Essex | 42.64111 | -70.69889 |
| Katama Bay Marshes | Dukes | 41.36639 | -70.49528 |
| Keyes Swamp | Franklin | 42.46667 | -72.75139 |
| Kimballs Pond | Middlesex | 42.49111 | -71.10222 |
| King Phillips Swamp | Bristol | 41.71667 | -71.08472 |
| Kingston Bay Marshes | Plymouth | 42.01222 | -70.70333 |
| Kirby Swamp | Norfolk | 42.15833 | -71.43333 |
| Larence Swamp | Hampshire | 42.33333 | -72.48333 |
| Larrabee Swamp | Nantucket | 41.26111 | -70.1375 |
| Lewis Neck | Barnstable | 41.5625 | -70.57639 |
| Lighthouse Marsh | Barnstable | 41.56028 | -69.99861 |
| Lilly Pond | Hampshire | 42.44167 | -72.83528 |
| Lily Pond (historical) | Nantucket | 41.28611 | -70.10556 |
| Lily Pond Bog | Barnstable | 41.67972 | -70.60278 |
| Little Bear Swamp | Plymouth | 41.70083 | -70.83194 |
| Little Cedar Swamp | Plymouth | 42.07917 | -70.86667 |
| Little Harbor Marshes | Plymouth | 41.73056 | -70.67472 |
| Little Namskaket River Marshes | Barnstable | 41.79472 | -70.00972 |
| Little Pamet River Marshes | Barnstable | 42.00389 | -70.07111 |
| Little River Marshes | Essex | 42.61278 | -70.70861 |
| Loagy Bay Marshes | Barnstable | 41.90028 | -70.00028 |
| Locke Bogs | Plymouth | 41.77833 | -70.73139 |
| Logging Swamp | Bristol | 41.76917 | -70.89111 |
| Long Meadow | Worcester | 42.10972 | -71.57361 |
| Long Meadow Swamp | Middlesex | 42.49167 | -71.21528 |
| Long Point Marshes | Barnstable | 42.03444 | -70.20389 |
| Long Pond Bog | Plymouth | 41.75083 | -70.86306 |
| Long Swamp | Barnstable | 41.78722 | -70.54583 |
| Lovings Bogs | Plymouth | 42.03972 | -70.72917 |
| Lowlands | Bristol | 42.01667 | -71.24583 |
| Mad Mares Neck | Plymouth | 41.8125 | -70.875 |
| Manwhague Swamp | Bristol | 41.80556 | -71.21806 |
| Maple Park Bogs | Plymouth | 41.78111 | -70.66333 |
| Maple Springs Bog | Plymouth | 41.79194 | -70.66111 |
| Maple Swamp | Bristol | 41.86528 | -71.1875 |
| Marsh Pond | Berkshire | 42.17222 | -73.45 |
| Mattapoisett Neck Marshes | Plymouth | 41.63667 | -70.82111 |
| Mattapoisett River Marshes | Plymouth | 41.63611 | -70.82944 |
| Meetinghouse Swamp | Plymouth | 41.91472 | -70.89167 |
| Meninimisset | Worcester | 42.33333 | -72.14306 |
| Mill Meadow | Middlesex | 42.5875 | -71.05417 |
| Mill Pond Marshes | Barnstable | 41.66028 | -70.26861 |
| Milldam Marsh (historical) | Middlesex | 42.37972 | -71.07889 |
| Miller Swamp | Hampden | 42.16528 | -73.01667 |
| Millets Swamp | Essex | 42.5875 | -70.77361 |
| Mink Meadows | Dukes | ||
| Miscoe Meadow | Norfolk | 42.03472 | -71.43194 |
| Mitchell River Marshes | Barnstable | 41.67056 | -69.96222 |
| Morgan Swamp | Worcester | 42.2375 | -71.97778 |
| Morgans Pond | Hampden | 42.14722 | -72.17917 |
| Moromoesoy Island | Barnstable | 41.56667 | -70.50833 |
| Morris Island Marshes | Barnstable | 41.66111 | -69.96278 |
| Mountain Hill Bogs | Plymouth | 41.83889 | -70.56389 |
| Muddy Cove Marshes | Plymouth | 41.755 | -70.65472 |
| Mystic River Marsh (historical) | Middlesex | 42.39528 | -71.08139 |
| Nahanton Street Swamp | Middlesex | 42.2925 | -71.20472 |
| Namskaket Creek Marshes | Barnstable | 41.78444 | -70.01833 |
| Nauset Bay Marshes | Barnstable | 41.8225 | -69.95222 |
| Nauset Marsh | Barnstable | 41.82889 | -69.95306 |
| Neal Pond | Essex | 42.82778 | -71.0375 |
| Neds Ditch | Hampshire | 42.3 | -72.63889 |
| Nelson Island Marshes | Essex | 42.74556 | -70.8275 |
| Neponset River Marshes | Norfolk | 42.27472 | -71.04889 |
| New Estate Swamp | Middlesex | 42.55278 | -71.5125 |
| New Guinea Swamp | Berkshire | 42.11667 | -73.37917 |
| North Pond | Nantucket | 41.29333 | -70.18611 |
| North River Marsh | Plymouth | 42.17639 | -70.73889 |
| North River Marshes | Plymouth | 42.1675 | -70.72917 |
| Nungee Swamp | Hampshire | 42.39306 | -72.68611 |
| Nye Bog | Barnstable | 41.76806 | -70.61722 |
| Oak Swamp | Bristol | 41.8 | -71.25417 |
| Old Orchard Bogs | Plymouth | 41.79361 | -70.70444 |
| Old Pond Meadows | Plymouth | 42.1375 | -70.825 |
| Orchard Swamp | Worcester | 42.28889 | -71.60417 |
| Orne Swamp | Essex | 42.61389 | -70.98333 |
| Owl Swamp | Plymouth | 41.85 | -70.90278 |
| Oyster Pond River Marshes | Barnstable | 41.6775 | -69.98278 |
| Paine Swamp | Worcester | 42.64722 | -72.18611 |
| Pamet River Marshes | Barnstable | 41.99389 | -70.04722 |
| Parker Mills Bogs | Plymouth | 41.77528 | -70.7 |
| Parker River Marshes | Essex | 42.75472 | -70.85056 |
| Parker Street Swamp (historical) | Middlesex | 42.30806 | -71.19861 |
| Parkers River Marshes | Barnstable | 41.64028 | -70.22639 |
| Peat Meadow | Essex | 42.72167 | -71.21611 |
| Peterson Swamp | Plymouth | 42.00278 | -70.81944 |
| Phelps Swamp | Berkshire | 42.19444 | -73.13889 |
| Pine Island Swamp | Plymouth | 42.12361 | -70.86667 |
| Pine Swamp | Bristol | 41.92778 | -71.07361 |
| Pines River Marshes | Suffolk | 42.44 | -70.99861 |
| Pitchawam Swamp | Hampshire | 42.26667 | -72.54167 |
| Plum Island River Marshes | Essex | 42.775 | -70.82472 |
| Pocasset Cedar Swamp | Bristol | 41.66111 | -71.18056 |
| Pochet Island Marshes | Barnstable | 41.76917 | -69.94583 |
| Pocomo Meadow | Nantucket | 41.30972 | -70.02222 |
| Pod Meadow | Middlesex | 42.33611 | -71.38611 |
| Pomeroys Meadow | Hampshire | 42.26111 | -72.70417 |
| Pond Swamp | Bristol | 41.74167 | -71.09861 |
| Popes Pond | Plymouth | 41.75056 | -70.68 |
| Poppasguash Swamp | Bristol | 41.85417 | -71.17556 |
| Porter Swamp | Hampshire | 42.27083 | -72.52722 |
| Pucasset River Marshes | Barnstable | 41.69833 | -70.61222 |
| Quivett Creek Marshes | Barnstable | 41.75306 | -70.13194 |
| Raccoon Swamp | Barnstable | 41.74194 | -70.51667 |
| Randall Swamp | Plymouth | 42.11972 | -70.83306 |
| Reedy Meadow | Middlesex | 42.64583 | -71.55417 |
| Reserve Pond | Norfolk | 42.22861 | -71.26667 |
| Richardsons Brook Swamp | Middlesex | 42.67222 | -71.275 |
| Richs Meadow Swamp | Middlesex | 42.42472 | -71.04417 |
| River Meadow Swamp | Middlesex | 42.58611 | -71.34167 |
| Robbins Bog | Plymouth | 41.76917 | -70.64056 |
| Rock Harbor Creek Marshes | Barnstable | 41.80778 | -69.99639 |
| Rock Island Cove Marshes | Norfolk | 42.26194 | -70.97111 |
| Roger Island River Marshes | Essex | 42.72111 | -70.83278 |
| Rogers Bog | Plymouth | 41.76333 | -70.65417 |
| Rogers Bogs | Plymouth | 41.76778 | -70.65861 |
| Round O Swamp | Nantucket | 41.27778 | -70.17139 |
| Round Swamp | Barnstable | 41.7375 | -70.54639 |
| Russell Bogs | Plymouth | 41.83333 | -70.69583 |
| Salt Marsh | Middlesex | 42.38972 | -71.06333 |
| Sampson Island Marshes | Barnstable | 41.75361 | -69.94611 |
| Sand Creek Marshes | Essex | 42.73 | -70.85639 |
| Sandwich Harbor Marshes | Barnstable | 41.76222 | -70.47861 |
| Saquish Neck Marshes | Plymouth | 42.00778 | -70.61972 |
| Satsuit Meadow | Plymouth | 42.17917 | -70.77083 |
| Saugus River Marshes | Essex | 42.46417 | -71.00444 |
| Scituate Harbor Marshes | Plymouth | 42.18806 | -70.72278 |
| Sconticut Neck Marshes | Bristol | 41.605 | -70.85222 |
| Scorton Creek Marshes | Barnstable | 41.73528 | -70.42583 |
| Scotland Swamp | Worcester | 42.36583 | -71.71056 |
| Sedge Meadows | Middlesex | 42.39583 | -71.36111 |
| Sengekontacket Pond Marshes | Dukes | 41.42667 | -70.56667 |
| Sesuit Creek Marshes | Barnstable | 41.74556 | -70.16278 |
| Shaughnessy Swamp | Hampden | 42.07778 | -72.90278 |
| Shaw Bogs | Plymouth | 41.87222 | -70.73194 |
| Shingle Island Swamp | Bristol | 41.6875 | -71.01389 |
| Shingle Swamp | Franklin | 42.56444 | -72.29583 |
| Sibley Swamp | Franklin | 42.50694 | -72.37722 |
| Silver Spring Brook Marshes | Barnstable | 41.88278 | -70.00083 |
| Single Swamp | Hampden | 42.12361 | -72.14361 |
| Sippican Bog | Plymouth | 41.69333 | -70.78917 |
| Sippican Harbor Marshes | Plymouth | 41.68972 | -70.75722 |
| Sippican River Marshes | Plymouth | 41.7375 | -70.765 |
| Slabbery Pond | Hampden | 42.20222 | -72.56111 |
| Slipe Pond | Hampshire | 42.21528 | -72.55 |
| Slocum Meadow | Worcester | 42.30417 | -71.73194 |
| Smalley Bogs | Plymouth | 41.8 | -70.73333 |
| Snows Pond | Hampshire | 42.22083 | -72.55139 |
| Sorag Pond | Essex | 42.72222 | -71.025 |
| South Acton Swamp | Middlesex | 42.45278 | -71.46111 |
| South Purchase Swamp | Plymouth | 41.84306 | -70.81667 |
| South River Marshes | Plymouth | 42.10694 | -70.68556 |
| South Swamp | Plymouth | 42.19444 | -70.79889 |
| Spotsa Swamp | Nantucket | 41.29167 | -70 |
| Spruce Swamp | Barnstable | 41.74778 | -70.51833 |
| Squannakonk Swamp | Bristol | 41.85417 | -71.21111 |
| Squantum Marshes | Norfolk | 42.29278 | -71.01889 |
| Squaw Island Marshes | Barnstable | 41.62889 | -70.31639 |
| Squaw Swamp (historical) | Plymouth | 41.79583 | -70.53722 |
| Squibnocket Marshes | Dukes | 41.31278 | -70.79667 |
| Starr Bogs | Plymouth | 41.77556 | -70.67778 |
| State Bogs | Plymouth | 41.76667 | -70.66889 |
| Station Pond Marsh | Barnstable | 41.55278 | -70.00139 |
| Stevens Swamp | Franklin | 42.67361 | -72.3875 |
| Stewart Bog | Plymouth | 41.78139 | -70.82917 |
| Straw Hollow | Worcester | 42.33333 | -71.69167 |
| Strawberry Meadow | Middlesex | 42.5875 | -71.06528 |
| Strong Island Marshes | Barnstable | 41.71833 | -69.95667 |
| Sudbury River Swamp | Middlesex | 42.45139 | -71.37083 |
| Sunk Meadow | Worcester | 42.42361 | -71.60639 |
| Sunken Meadow | Barnstable | 41.875 | -70.00694 |
| Sunken Meadows Marshes | Barnstable | 41.87306 | -70.00361 |
| Swan Pond River Marshes | Barnstable | 41.62333 | -70.14861 |
| Sweedens Swamp | Bristol | 41.90417 | -71.3625 |
| Tadmuck Swamp | Middlesex | 42.57917 | -71.40417 |
| Taupawshas Swamp | Nantucket | 41.27722 | -70.05278 |
| Tays Bog | Plymouth | 41.86278 | -70.56889 |
| Thompsons Meadow | Essex | 42.49167 | -70.9125 |
| Thoreaus Bog | Middlesex | 42.4625 | -71.32917 |
| Thousand Acre Swamp | Berkshire | 42.07083 | -73.20417 |
| Tilden Swamp | Berkshire | 42.49861 | -73.32611 |
| Titicut Swamp | Bristol | 41.95 | -71.03333 |
| Tom Nevers Swamp | Nantucket | 41.25833 | -69.985 |
| Tomlins Swamp | Essex | 42.48333 | -70.99306 |
| Tophet Swamp | Middlesex | 42.5375 | -71.675 |
| Town River Marshes | Norfolk | 42.25194 | -70.99389 |
| Towsers Neck | Plymouth | 41.7225 | -70.83444 |
| Towsers Swamp | Plymouth | 41.72444 | -70.83611 |
| Trots Swamp | Nantucket | 41.275 | -70.14444 |
| Turf Meadow | Essex | 42.62917 | -70.8 |
| Turkey Swamp | Middlesex | 42.4525 | -71.10778 |
| Tyne Swamp | Berkshire | 42.28056 | -73.12222 |
| Tyngs Swamp | Middlesex | 42.65417 | -71.41667 |
| Valley Swamp | Plymouth | 42.17917 | -70.86111 |
| Walker Creek Marshes | Essex | 42.63667 | -70.73722 |
| Walsh Bog | Plymouth | 41.79361 | -70.71944 |
| Wampatuck Bogs | Plymouth | 42.04306 | -70.86667 |
| Wampum Swamp | Plymouth | 42.10833 | -70.86222 |
| Wankinco Cranberry Bog | Plymouth | 41.83611 | -70.71389 |
| Ware Bogs | Plymouth | 41.81944 | -70.60917 |
| Weir River Marshes | Plymouth | 42.21861 | -70.87611 |
| Wellington Marsh | Middlesex | 42.40194 | -71.09028 |
| Wenham Swamp | Essex | 42.61667 | -70.9 |
| West Creek Marshes | Essex | 42.73667 | -70.85 |
| West Island Marshes | Bristol | 41.59389 | -70.825 |
| Westport River East Branch Marshes | Bristol | 41.52667 | -71.05806 |
| Westport River West Branch Marshes | Bristol | 41.52611 | -71.09556 |
| Weweeder Ponds | Nantucket | 41.245 | -70.1 |
| Weymouth Back River Marshes | Plymouth | 42.22056 | -70.92167 |
| Weymouth Fore River Marshes | Norfolk | 42.22889 | -70.95889 |
| Wharf Creek Marshes | Plymouth | 42.08194 | -70.67111 |
| Whitcomb Swamp | Barnstable | 41.62778 | -70.5 |
| White Ash Swamp | Franklin | 42.60833 | -72.575 |
| White Island Bogs | Plymouth | 41.8225 | -70.61889 |
| White Rabbit Swamp | Worcester | 42.58472 | -71.70194 |
| Wilder Swamp | Hampshire | 42.37778 | -72.85694 |
| Williams Pond | Franklin | 42.51194 | -72.83611 |
| Winebrook Bags | Plymouth | 42.00861 | -70.85639 |
| Winebrook Bogs | Plymouth | 42.00833 | -70.86111 |
| Wings Cove Marshes | Barnstable | 41.69083 | -70.64528 |
| Witch Pond Swamp | Bristol | 42.01389 | -71.27917 |
| Wolf Swamp | Berkshire | 42.06806 | -73.18333 |
| Wrack Meadow | Worcester | 42.3625 | -71.68167 |
| Yellow Birch Swamp | Middlesex | 42.49111 | -71.34417 |
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