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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.Martha's VineyardMarthas Vineyard High Point311Massachusetts29.8 
3.Long IslandJaynes Hill390New York21.2 
4.Roque IslandRoque Benchmark210Maine20.7 
5.Isle au HautMount Champlain545Maine20.2 
6.Monhegan IslandBlack Head165Maine16.2 
7.Block IslandBeacon Hill211Rhode Island15.4 
8.Staten IslandTodt Hill415New York14.1 
9.Bar Island [Machiasport]Bar Island High Point205Maine14.0 
10.Swans IslandGoose Pond Mountain241Maine10.4 
11.Great Chebeague IslandGreat Chebeague Island High Point152Maine9.2 
12.Naushon IslandMount Surat174Massachusetts8.6 
13.Conary IslandConary Island High Point196Maine8.2 
14.Great Spruce Head IslandThe Head225Maine8.0 
15.Shelter IslandShelter Island Heights185New York8.0 
16.Nashawena IslandNashawena Island High Point151Massachusetts7.5 
17.Seguin IslandSeguin Island High Point150Maine7.4 
18.Sears IslandSears Island High Point205Maine6.8 
19.Burnt IslandBurnt Island High Point156Maine6.5 
20.Head Harbor IslandMoose-A-Bec Benchmark196Maine5.8 
21.Aquidneck IslandQuaker Hill285Rhode Island5.8 
22.Sebascodegan IslandReach Mountain210Maine4.9 
23.Westport Island Westport Island High Point171Maine4.6 
24.Hurricane IslandHurricane Island High Point164Maine4.5 
25.Arrowsic IslandArrowsic Island High Point155Maine4.3 
26.Cross IslandCross Island High Point193Maine4.2 
27.Preble IslandPreble Island High Point171Maine4.2 
28.Jordan IslandJordan Island High Point210Maine4.1 
29.Southport IslandSouthport Island High Point155Maine4.1 
30.North Haven IslandOak Hill155Maine4.0 
31.Black IslandBlack Island High Point161Maine3.9 
32.Deer IsleWhitmore Neck175Maine3.8 
33.Long Island [Frenchboro]Long Island High Point221Maine3.7 
34.ManhattanManhattan High Point265New York3.6 
35.Seward Neck IslandSeward Neck Island High Point192Maine3.6 
36.Isleboro IslandKedears Hill195Maine3.5 
37.Hog Island [Essex Co.]Choate Benchmark177Massachusetts3.3 
38.Prudence IslandPrudence Island High Point185Rhode Island3.2 
39.Calderwood Neck IslandCalderwood Neck Island High Point171Maine3.1 
40.Barters IslandBarters Island High Point175Maine2.2 
41.Bradbury IslandBradbury Island High Point162Maine2.1 
42.Pond IslandPond Island High Point158Maine2.1 
43.Bald Porcupine IslandWheeler Benchmark190Maine2.1 
44.Kimball IslandKimball Island High Point187Maine1.7 
45.Eagle Island [Hancock Co.]Eagle Island High Point155Maine1.6 
46.Butler IslandBig Mountain196Maine1.6 
47.Bar Island [Gouldsboro]Bar Island Summit173Maine1.4 
48.Bois Bubert IslandBois Bubert Island High Point178Maine1.4 
49.Long Porcupine IslandLong Porcupine Island High Point165Maine1.3 

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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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