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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 Island
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Feature Name
|
County
|
Latitude
|
Longitude
|
| Abbot Rock | Essex | 42.53056 | -70.86389 |
| Abiels Ledge | Plymouth | 41.69167 | -70.67333 |
| Abnecotants Island | Nantucket | 41.31306 | -70.00167 |
| Alden Island | Plymouth | 42.05417 | -70.68139 |
| Aldridge Ledge | Norfolk | 42.34583 | -70.90972 |
| Alleghany Rock | Dukes | 41.48611 | -70.60139 |
| Allen Rock | Dukes | 41.42222 | -70.495 |
| Angelica Rock | Bristol | 41.57972 | -70.85889 |
| Anuxanon Island | Plymouth | 41.80556 | -70.90278 |
| Apple Island | Suffolk | 42.35833 | -70.99167 |
| Archer Rock | Essex | 42.5125 | -70.82361 |
| Averills Island | Essex | 42.64028 | -70.9125 |
| Babson Ledge | Essex | 42.60583 | -70.6675 |
| Bachelor Island | Dukes | 41.50028 | -70.70806 |
| Badgers Rock | Essex | 42.82083 | -70.82083 |
| Bagwell Island | Essex | 42.70556 | -70.82222 |
| Bailey Flat | Bristol | 41.51389 | -71.08889 |
| Bakers Island | Essex | 42.53333 | -70.78667 |
| Bar Rock | Bristol | 41.49444 | -71.04028 |
| Barrel Rock | Norfolk | 42.25861 | -70.78528 |
| Barstow Rock | Plymouth | 41.64167 | -70.79417 |
| Bartlett Rock | Essex | 42.66861 | -70.61944 |
| Barton Island | Franklin | 42.60278 | -72.54167 |
| Bass Ledge | Nantucket | 41.33333 | -70.35833 |
| Bass Rock | Essex | 42.69778 | -70.78417 |
| Bassetts Island | Barnstable | 41.68 | -70.6375 |
| Bates Island | Worcester | 42.03222 | -71.835 |
| Bates Rock | Plymouth | 42.25556 | -70.74583 |
| Bear Island | Norfolk | 42.08472 | -71.24389 |
| Beaver Island | Franklin | 42.66833 | -72.95972 |
| Bellingsgate Island (historical) | Barnstable | 41.86944 | -70.06667 |
| Bemo Ledge | Essex | 42.59028 | -70.64778 |
| Bench Rock | Barnstable | 41.72 | -70.29361 |
| Bents Ledge | Bristol | 41.56833 | -70.91417 |
| Big Pine Island | Bristol | 41.54722 | -71.05833 |
| Big Quamino Rock | Norfolk | 42.25278 | -70.78778 |
| Big Ram Island | Bristol | 41.51806 | -71.05694 |
| Big Rock | Dukes | 41.47333 | -70.62278 |
| Bird Island | Plymouth | 41.66944 | -70.71778 |
| Black Rock | Berkshire | 42.12278 | -73.42222 |
| Blind Rock | Barnstable | 41.71389 | -70.30944 |
| Blue Fish Rock | Plymouth | 42.07889 | -70.6425 |
| Blueberry Island | Worcester | 42.71111 | -72.00778 |
| Boohoo Ledge | Essex | 42.56472 | -70.7475 |
| Boutwell Island | Middlesex | 42.63111 | -71.58611 |
| Boynton Island | Essex | 42.64417 | -70.69639 |
| Brace Rock | Essex | 42.58667 | -70.64861 |
| Brant Island | Plymouth | 41.625 | -70.81833 |
| Brant Rock | Plymouth | 42.09167 | -70.64167 |
| Brewster Islands | Suffolk | 42.3375 | -70.88889 |
| Briggs Rock | Bristol | 41.49194 | -71.10667 |
| Brimbles | Essex | 42.52083 | -70.80833 |
| Brooklyn Rock | Bristol | 41.56944 | -70.87667 |
| Brown Island | Essex | 42.51389 | -70.84306 |
| Browns Island | Essex | 42.76583 | -70.81472 |
| Brush Island | Dukes | 41.42917 | -70.56667 |
| Buckthorn Rock | Norfolk | 42.25917 | -70.78889 |
| Bull Island | Dukes | 41.5125 | -70.70417 |
| Burnham Rocks | Essex | 42.53944 | -70.67944 |
| Button Island | Plymouth | 42.25139 | -70.88528 |
| Calf Island | Suffolk | 42.34167 | -70.89611 |
| Calf Islands | Suffolk | 42.34361 | -70.89583 |
| Canary Island | Hampshire | 42.35278 | -72.63333 |
| Canoe Rock | Bristol | 41.51806 | -71.09583 |
| Carr Island | Essex | 42.82778 | -70.8875 |
| Carrick Island | Worcester | 42.41556 | -72.28833 |
| Castle Rock | Essex | 42.42167 | -70.9075 |
| Caswell Rock | Essex | 42.525 | -70.85667 |
| Cat Island | Norfolk | 42.2575 | -70.98056 |
| Cataumet Rock | Barnstable | 41.65139 | -70.64611 |
| Cedar Island | Bristol | 41.54333 | -70.97 |
| Cemetery Island | Worcester | 42.4 | -71.71389 |
| Chaces Island | Essex | 42.80222 | -70.82667 |
| Channel Rock | Barnstable | 41.7125 | -70.30361 |
| Chappaquiddick Island | Dukes | 41.375 | -70.475 |
| Checkerberry Island | Worcester | 42.04222 | -71.85333 |
| Cheshire Cemetery | Berkshire | 42.56389 | -73.17083 |
| Childrens Island | Essex | 42.51167 | -70.815 |
| Childs Island | Norfolk | 42.16694 | -71.30556 |
| Chittenden Rock | Norfolk | 42.26194 | -70.78972 |
| Choate Island | Essex | 42.66528 | -70.75972 |
| Chubb Island | Essex | 42.54306 | -70.79722 |
| Chubb Islet | Essex | 42.56 | -70.79778 |
| Church Rock | Barnstable | 41.7125 | -70.30556 |
| Clark Island | Berkshire | 42.14444 | -73.0375 |
| Clarks Island | Plymouth | 42.00833 | -70.6375 |
| Cleft Rock | Plymouth | 41.93528 | -70.58194 |
| Cleveland East Ledge | Barnstable | 41.63333 | -70.69333 |
| Cleveland Island | Barnstable | 41.67222 | -70.4825 |
| Cleveland Ledge | Plymouth | 41.63333 | -70.70833 |
| Cobble Island | Worcester | 42.03417 | -71.845 |
| Coffin Rock | Barnstable | 41.5125 | -70.6625 |
| Commissioners Ledge | Suffolk | 42.35667 | -70.90556 |
| Common Island | Plymouth | 42.05806 | -70.66889 |
| Cone Rock | Barnstable | 41.71083 | -70.31722 |
| Coney Island | Essex | 42.52917 | -70.8375 |
| Coney Island Rock | Essex | 42.53056 | -70.8375 |
| Conspiracy Island | Bristol | 41.78333 | -71.11528 |
| Cooks Island | Plymouth | 41.99083 | -70.7125 |
| Cormorant Rock | Essex | 42.50944 | -70.8125 |
| Corys Island | Bristol | 41.51389 | -71.08472 |
| Cove Ledge | Essex | 42.57167 | -70.71667 |
| Crescent Island | Norfolk | 42.08528 | -71.24083 |
| Cross Banks | Essex | 42.71528 | -70.81806 |
| Cross Farm Hill | Essex | 42.71667 | -70.78194 |
| Crow Island | Bristol | 41.6375 | -70.91111 |
| Crow Island Rock | Essex | 42.57361 | -70.73333 |
| Cunningham Ledge | Worcester | 42.39389 | -71.70611 |
| Cuttyhuck Island | Dukes | 41.41972 | -70.93389 |
| Cuttyhunk Island | Dukes | 41.41667 | -70.93611 |
| Dartmouth Rock | Bristol | 41.57833 | -70.94333 |
| David Rock | Essex | 42.57278 | -70.71667 |
| Davids Island | Norfolk | 42.24861 | -70.93417 |
| Dead Neck | Barnstable | 41.60778 | -70.41667 |
| Dean Island | Essex | 42.65972 | -70.76944 |
| Decatur Rock | Bristol | 41.5625 | -70.89111 |
| Deer Island | Essex | 42.835 | -70.90694 |
| Devils Foot Island | Barnstable | 41.52083 | -70.68167 |
| Devilsfoot Island | Norfolk | 42.16722 | -71.31056 |
| Dighton Rock | Bristol | 41.81556 | -71.11111 |
| Dilly Island | Essex | 42.66083 | -70.74528 |
| Dix Ledge | Bristol | 41.62917 | -70.90556 |
| Dodge Rock | Essex | 42.66667 | -70.61667 |
| Dogfish Ledge | Bristol | 41.50222 | -71.08833 |
| Dole Island | Essex | 42.75417 | -70.82083 |
| Dolphin Rock | Essex | 42.46667 | -70.86667 |
| Dread Ledge | Essex | 42.45694 | -70.89444 |
| Dry Salvages | Essex | 42.67222 | -70.56806 |
| Duck Island | Barnstable | 41.71667 | -70.34028 |
| Duck Islands | Middlesex | 42.64833 | -71.28889 |
| Eagle Island | Essex | 42.83472 | -70.90139 |
| East Hogshead Rock | Plymouth | 42.26778 | -70.7675 |
| East Round Rock | Plymouth | 42.25861 | -70.76806 |
| East Shag Rock | Plymouth | 42.26306 | -70.76722 |
| Eddie Woods Rock | Barnstable | 41.61944 | -70.30444 |
| Edwards Rock | Dukes | 41.43417 | -70.91889 |
| Edys Island | Dukes | 41.34833 | -70.78167 |
| Egg Island | Bristol | 41.60972 | -70.88889 |
| Egg Rock | Essex | 42.43333 | -70.89861 |
| Elwell Island | Hampshire | 42.33944 | -72.625 |
| Esther Island | Nantucket | 41.27917 | -70.225 |
| Eustis Rock | Barnstable | 41.675 | -70.64583 |
| Farnham Rock | Plymouth | 42.085 | -70.62722 |
| Ferry Boat Island | Dukes | 41.45139 | -70.59861 |
| Fiddle Head Rock | Barnstable | 41.63889 | -70.265 |
| Finns Ledge | Suffolk | 42.37083 | -70.92167 |
| Fish Island | Barnstable | 41.72917 | -70.35389 |
| Fishing Ledge | Barnstable | 41.94 | -70.30833 |
| Fishing Rock | Bristol | 41.51611 | -71.06861 |
| Flat Rock | Bristol | 41.49833 | -71.08944 |
| Flip Rock | Essex | 42.40278 | -70.925 |
| Flying Fish Rock | Barnstable | 41.71056 | -70.31444 |
| Flying Place | Suffolk | 42.33972 | -70.88472 |
| Four Acre Island | Worcester | 42.49444 | -71.595 |
| Fowlers Island | Essex | 42.61944 | -70.90972 |
| Fox Hill | Barnstable | 41.71306 | -69.96472 |
| French King Rock | Franklin | 42.60417 | -72.4925 |
| Gallatin Rock | Plymouth | 41.63306 | -70.78722 |
| Gallops Island | Suffolk | 42.32639 | -70.94 |
| Gangway Rock | Essex | 42.81167 | -70.85833 |
| Gate Island | Berkshire | 42.15694 | -73.05556 |
| Georges Island | Suffolk | 42.32 | -70.91667 |
| Gerry Island | Essex | 42.51111 | -70.84167 |
| Gifford Ledge | Barnstable | 41.5925 | -70.65833 |
| Goat Island | Plymouth | 41.79306 | -70.93611 |
| Goat Rock | Hampden | 42.06111 | -72.43306 |
| Gooseberry Island | Barnstable | 41.59444 | -70.46528 |
| Gosnold Island | Dukes | 42.40417 | -70.94861 |
| Gravelly Rock | Plymouth | 41.63167 | -70.79611 |
| Graves Island | Essex | 42.57167 | -70.74583 |
| Grays Rock | Essex | 42.51944 | -70.83194 |
| Great Bank | Essex | 42.65833 | -70.75694 |
| Great Brewster Island | Suffolk | 42.33194 | -70.89667 |
| Great Egg Rock | Essex | 42.56389 | -70.73889 |
| Great Flat | Bristol | 41.52083 | -71.09 |
| Great Harry Foot | Plymouth | 42.05278 | -70.66917 |
| Great Haste Island | Essex | 42.53472 | -70.84306 |
| Great Island | Barnstable | 41.73194 | -70.37083 |
| Great Rock | Barnstable | 41.61778 | -70.28611 |
| Great Thatch Island | Barnstable | 41.72306 | -70.31528 |
| Great Wood Island | Plymouth | 42.0625 | -70.66111 |
| Green Hill Rock | Plymouth | 42.26917 | -70.83056 |
| Green Island | Suffolk | 42.35361 | -70.89222 |
| Green Rock | Essex | 42.6025 | -70.66194 |
| Grinnell Rock | Bristol | 41.51667 | -71.075 |
| Gull Island | Bristol | 41.59583 | -70.82167 |
| Gumbys Head | Bristol | 41.4875 | -71.03444 |
| Gun Rock | Plymouth | 42.26944 | -70.84 |
| Gunning Island | Bristol | 41.5375 | -71.05556 |
| Hales Island | Essex | 42.76111 | -71.05667 |
| Half Moon Island | Norfolk | 42.27167 | -70.98389 |
| Half Moon Island (historical) | Norfolk | 42.27 | -70.9825 |
| Half Tide Rock | Barnstable | 41.65444 | -70.63028 |
| Halfmile Rock | Bristol | 41.50694 | -71.08611 |
| Halfmoon Flat | Bristol | 41.5125 | -71.05972 |
| Halftide Rock | Barnstable | 41.615 | -70.28083 |
| Halfway Rock | Essex | 42.50278 | -70.775 |
| Hamilton Island | Franklin | 42.48472 | -72.30278 |
| Hammer Island | Plymouth | 42.05722 | -70.65944 |
| Hangman Island | Norfolk | 42.29028 | -70.97083 |
| Harbor Ledge | Essex | 42.57361 | -70.71722 |
| Harbor Rock | Essex | 42.67222 | -70.61389 |
| Harrys Rock | Plymouth | 42.28833 | -70.935 |
| Haskell Island | Plymouth | 41.67778 | -70.76111 |
| Haste Rock | Essex | 42.53472 | -70.84028 |
| Hatsett Rock | Dukes | 41.42111 | -70.49722 |
| Head Island | Hampshire | 42.33056 | -71.01639 |
| Hemlock Island | Bristol | 41.92083 | -71.21667 |
| Hicks Rock | Bristol | 41.47694 | -71.04889 |
| High Bush Island | Plymouth | 41.76639 | -70.86583 |
| High Island | Barnstable | 41.72389 | -70.32444 |
| High Pine Ledge | Plymouth | 42.03333 | -70.60972 |
| High Pines | Plymouth | 42.02917 | -70.62556 |
| High Rock | Essex | 42.64028 | -70.6125 |
| Hinckley Rock | Barnstable | 41.71111 | -70.31944 |
| Hodgeman Rock | Bristol | 41.54667 | -71.12083 |
| Hodges Rock | Barnstable | 41.59028 | -70.31667 |
| Hog Island | Barnstable | 41.74722 | -69.95 |
| Hog Islands | Essex | 42.73472 | -70.81944 |
| Hog Rock | Plymouth | 42.25083 | -70.77333 |
| Hogshead Rock | Plymouth | 42.26889 | -70.77028 |
| Holy Island | Essex | 42.725 | -70.82639 |
| Hopkins Island | Barnstable | 41.80417 | -69.97083 |
| Horse Island | Plymouth | 42.23833 | -70.775 |
| House Island | Essex | 42.55278 | -70.78194 |
| Howard Island | Plymouth | 42.00278 | -70.85694 |
| Howland Ledge | Plymouth | 42.07722 | -70.62 |
| Huckins Island | Barnstable | 41.715 | -70.33 |
| Humphreys Island | Essex | 42.52139 | -71.00278 |
| Hunt Ledge | Plymouth | 42.31528 | -70.90778 |
| Hunts Rock | Bristol | 41.53472 | -70.94444 |
| Hursell Rock | Bristol | 41.54667 | -70.69806 |
| Hussey Rock | Bristol | 41.55583 | -70.92444 |
| Inez Rock | Bristol | 41.56306 | -70.90833 |
| Inner Church Ledge | Bristol | 41.485 | -71.105 |
| Inner Mayo Ledge | Bristol | 41.45806 | -71.09722 |
| Inner Seal Rock | Plymouth | 42.29833 | -70.90972 |
| Island of North Boston (historical) | Suffolk | 42.36556 | -71.05611 |
| Jack Rock | Essex | 42.51083 | -70.84 |
| Jackson Island | Barnstable | 41.72694 | -70.35278 |
| Jefferson Island | Barnstable | 41.67722 | -70.48472 |
| Jeggle Island | Essex | 42.50139 | -70.88611 |
| Job Island | Plymouth | 42.00056 | -70.86611 |
| Joe Beach Ledge | Essex | 42.415 | -70.91389 |
| Joe Burris Ledge | Bristol | 41.49778 | -71.07861 |
| Judy Island | Bristol | 41.54083 | -71.10444 |
| Jug Rock | Bristol | 41.51806 | -71.07639 |
| Jules Island | Barnstable | 41.71167 | -70.33667 |
| Keel Rock | Bristol | 41.55694 | -70.93056 |
| Keith Island | Barnstable | 41.67222 | -70.48944 |
| Kelly Rock | Suffolk | 42.32056 | -70.91194 |
| Kents Island | Essex | 42.76472 | -70.875 |
| Kettle Island | Essex | 42.56806 | -70.72222 |
| Kettle Island Ledge | Essex | 42.54333 | -70.70167 |
| Kibby Ground | Bristol | 41.48083 | -71.0925 |
| Kidds Island | Franklin | 42.64361 | -72.47694 |
| Kimball Island | Essex | 42.75889 | -71.12889 |
| Kitfield Ledge | Essex | 42.5725 | -70.7375 |
| Knapp Rock | Essex | 41.52556 | -70.85889 |
| Kolb Rock | Barnstable | 41.66722 | -70.01139 |
| Lakes Island | Bristol | 41.56111 | -71.07222 |
| Langlee Island | Plymouth | 42.26083 | -70.8875 |
| Leveau Island | Worcester | 42.43778 | -72.26611 |
| Lewis Island | Barnstable | 41.67667 | -70.325 |
| Little Bird Island | Plymouth | 41.71556 | -70.695 |
| Little Black Rock | Bristol | 41.57694 | -70.84139 |
| Little Brewster Island | Suffolk | 42.32778 | -70.89083 |
| Little Calf Island | Suffolk | 42.34583 | -70.895 |
| Little Egg Island | Bristol | 41.61944 | -70.88611 |
| Little Egg Rock | Essex | 42.56306 | -70.74028 |
| Little Harry Foot | Plymouth | 42.05389 | -70.67028 |
| Little Haste | Essex | 42.53528 | -70.84333 |
| Little Island | Barnstable | 41.67861 | -70.13194 |
| Little Misery Island | Essex | 42.54444 | -70.79861 |
| Little Pine Island | Bristol | 41.55 | -71.05556 |
| Little Quabbin Island | Hampshire | 42.325 | -72.31667 |
| Little Quamino Rock | Norfolk | 42.25417 | -70.7875 |
| Little Ram Island | Bristol | 41.52083 | -71.06111 |
| Little Sipson Island | Barnstable | 41.73056 | -69.96028 |
| Little South West Rock | Bristol | 41.47778 | -71.04333 |
| Little Thatch Island | Barnstable | 41.5825 | -70.455 |
| Lobster Rock | Barnstable | 41.71222 | -70.295 |
| Londoner | Essex | 42.63556 | -70.56667 |
| Lone Rock | Bristol | 41.56056 | -70.91528 |
| Long Island | Bristol | 41.59722 | -70.84583 |
| Long Point | Plymouth | 42.03972 | -70.66722 |
| Long Rock | Bristol | 41.49583 | -71.10833 |
| Lovell Island | Suffolk | 42.32917 | -70.92917 |
| Lovers Rock | Dukes | 41.45167 | -70.5525 |
| Low Bush Island | Plymouth | 41.76806 | -70.86861 |
| Lowe Island | Essex | 42.65417 | -70.77639 |
| Lower Spectacle Island | Bristol | 41.55139 | -71.05972 |
| Lumber Rock | Bristol | 41.47472 | -71.0475 |
| Lunt Rock | Essex | 42.82056 | -70.83611 |
| Macombers Island | Plymouth | 42.15472 | -70.725 |
| Maffitt Ledge | Suffolk | 42.35694 | -70.89611 |
| Marblehead Rock | Essex | 42.50278 | -70.82639 |
| Markham Ledge | Bristol | 41.49167 | -71.0825 |
| Martha's Vineyard | Dukes | 41.41667 | -70.61667 |
| Martin Rock | Essex | 42.51528 | -70.81667 |
| Mattapoisett Ledge | Plymouth | 41.62917 | -70.79667 |
| Mayflower Ledge | Essex | 42.60167 | -70.66833 |
| Meadow Island | Plymouth | 41.69722 | -70.74333 |
| Meadow Rock | Dukes | 41.47556 | -70.62194 |
| Midchannel Rock | Essex | 42.52361 | -70.82083 |
| Middle Brewster Island | Suffolk | 42.33833 | -70.88889 |
| Middle Ground | Essex | 42.71944 | -70.80417 |
| Mill Ledge | Essex | 42.57222 | -70.72333 |
| Mill River Cemetery | Berkshire | 42.10833 | -73.26361 |
| Mill Rock | Dukes | 41.41472 | -70.49417 |
| Ministers Island | Worcester | 42.49028 | -71.60139 |
| Mink Island | Norfolk | 42.25194 | -70.79917 |
| Misery Rock | Essex | 42.54861 | -70.80694 |
| Mitchell Rock | Essex | 42.67 | -70.60139 |
| Mollys Island | Barnstable | 41.71333 | -70.33667 |
| Monk Island | Middlesex | 42.51778 | -71.08139 |
| Monohansett Island | Dukes | 41.50417 | -70.70306 |
| Monohansett Rock | Dukes | 41.42 | -70.49444 |
| Monomoy Island | Barnstable | 41.64583 | -69.96944 |
| Monument Island | Plymouth | 42.06667 | -70.83833 |
| Moon Island | Norfolk | 42.30556 | -70.99167 |
| Mosswetusset Hummock | Norfolk | 42.28917 | -71.02222 |
| Mount L | Franklin | 42.45333 | -72.29194 |
| Muskeget Island | Nantucket | 41.3375 | -70.30556 |
| Muskeget Rock | Nantucket | 41.33611 | -70.37222 |
| Nahant Rock | Essex | 42.40556 | -70.94722 |
| Nantucket Island | Nantucket | 41.28333 | -70.08333 |
| Nashawena Island | Dukes | 41.42917 | -70.875 |
| Natick Island (historical) | Dukes | 41.41667 | -70.45417 |
| Naushon Island | Dukes | 41.48333 | -70.75833 |
| Nelson Island | Essex | 42.74583 | -70.82778 |
| Neverfail Ledge | Essex | 42.56667 | -70.73333 |
| Newton Island | Worcester | 42.32306 | -71.51528 |
| Nicks Rock | Plymouth | 41.95917 | -70.71278 |
| Nomans Land | Dukes | 41.25556 | -70.81667 |
| Nonamesset Island | Dukes | 41.50833 | -70.6875 |
| Normans Woe Rock | Essex | 42.57972 | -70.69306 |
| North Gooseberry Island | Essex | 42.52639 | -70.79444 |
| North Ledge | Bristol | 41.56833 | -70.8875 |
| North Rock | Dukes | 41.45083 | -70.85611 |
| Northeast Grave | Suffolk | 42.37 | -70.86611 |
| Norton Rock | Dukes | 41.43472 | -70.70556 |
| Nye Ledge | Plymouth | 41.61806 | -70.775 |
| Oak Island | Essex | 42.62639 | -70.70278 |
| Off Rock | Essex | 42.46528 | -70.88611 |
| Old Bartlemy | Bristol | 41.59417 | -70.93056 |
| Old Cock | Bristol | 41.46167 | -71.035 |
| Old Harry Rock | Essex | 42.42222 | -70.94111 |
| Old Kelick Rock | Bristol | 41.61556 | -70.84361 |
| Old Man | Dukes | 41.28194 | -70.81278 |
| Old Skunk | Bristol | 41.505 | -71.0025 |
| Old Sow | Plymouth | 42.20667 | -70.71444 |
| Old Spirit Rock | Dukes | 42.57222 | -70.73333 |
| Old Whale Rock | Bristol | 41.49722 | -71.10694 |
| Onset Island | Plymouth | 41.73333 | -70.64306 |
| Osceola Island | Plymouth | 42.00639 | -70.90917 |
| Osterville Grand Island | Barnstable | 41.61667 | -70.41667 |
| Outer Brewster Island | Suffolk | 42.34167 | -70.87778 |
| Outer Point Rock | Essex | 42.51944 | -70.84028 |
| Outer Seal Rock | Plymouth | 42.29667 | -70.90833 |
| Outer Tautog Rock | Plymouth | 41.95444 | -70.58278 |
| Packet Rock | Bristol | 41.57972 | -70.86972 |
| Paddock Rock | Essex | 42.56 | -70.74417 |
| Palmer Island | Bristol | 41.625 | -70.91056 |