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Atlantic Ocean U.S. Island High Points above 150 feet

RankIslandPeak Elev-Ft
StateIsol-MiAscent Date
1.Mount Desert IslandCadillac Mountain1528Maine87.0 
2.Isle au HautMount Champlain550Maine20.2 
3.Staten IslandTodt Hill420New York14.1 
4.Long IslandJaynes Hill400New York21.2 
5.Martha's VineyardMarthas Vineyard High Point311Massachusetts29.8 
6.Aquidneck IslandQuaker Hill290Rhode Island5.8 
7.ManhattanManhattan High Point265New York3.6 
8.Swans IslandGoose Pond Mountain241Maine10.4 
9.Great Spruce Head IslandThe Head230Maine8.0 
10.Long Island [Frenchboro]Long Island High Point221Maine3.7 
11.Jordan IslandJordan Island High Point220Maine4.1 
11.Sebascodegan IslandReach Mountain220Maine4.9 
11.Roque IslandRoque Benchmark220Maine20.7 
14.Block IslandBeacon Hill211Rhode Island15.4 
15.Bar Island [Machiasport]Bar Island High Point210Maine14.0 
15.Sears IslandSears Island High Point210Maine6.8 
17.Isleboro IslandKedears Hill200Maine3.5 
17.Bald Porcupine IslandWheeler Benchmark200Maine2.1 
19.Butler IslandBig Mountain196Maine1.6 
19.Conary IslandConary Island High Point196Maine8.2 
19.Head Harbor IslandMoose-A-Bec Benchmark196Maine5.8 
22.Cross IslandCross Island High Point193Maine4.2 
23.Seward Neck IslandSeward Neck Island High Point192Maine3.6 
24.Prudence IslandPrudence Island High Point190Rhode Island3.2 
24.Shelter IslandShelter Island Heights190New York8.0 
26.Kimball IslandKimball Island High Point187Maine1.7 
27.Barters IslandBarters Island High Point180Maine2.2 
27.Deer IsleWhitmore Neck180Maine3.8 
29.Bois Bubert IslandBois Bubert Island High Point178Maine1.4 
30.Hog Island [Essex Co.]Choate Benchmark177Massachusetts3.3 
31.Naushon IslandMount Surat174Massachusetts8.6 
32.Bar Island [Gouldsboro]Bar Island Summit173Maine1.4 
33.Calderwood Neck IslandCalderwood Neck Island High Point171Maine3.1 
33.Preble IslandPreble Island High Point171Maine4.2 
33.Westport Island Westport Island High Point171Maine4.6 
36.Monhegan IslandBlack Head165Maine16.2 
36.Long Porcupine IslandLong Porcupine Island High Point165Maine1.3 
38.Hurricane IslandHurricane Island High Point164Maine4.5 
39.Bradbury IslandBradbury Island High Point162Maine2.1 
40.Black IslandBlack Island High Point161Maine3.9 
41.Arrowsic IslandArrowsic Island High Point160Maine4.3 
41.Eagle Island [Hancock Co.]Eagle Island High Point160Maine1.6 
41.North Haven IslandOak Hill160Maine4.0 
41.Southport IslandSouthport Island High Point160Maine4.1 
45.Pond IslandPond Island High Point158Maine2.1 
46.Burnt IslandBurnt Island High Point156Maine6.5 
47.Great Chebeague IslandGreat Chebeague Island High Point152Maine9.2 
48.Nashawena IslandNashawena Island High Point151Massachusetts7.5 
49.Seguin IslandSeguin Island High Point150Maine7.4 

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List Description

Most of the islands (38 our of 49, or 78%) on this list are in Maine. There are no islands over 150 feet high on the USA Atlantic seaboards south of New York harbor.


Thanks to Dave Covill, who did a great deal of exhaustive data entry to get this list complete.


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