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

RankIslandPeak Elev-M StateIsol-Km
1.Mount Desert IslandCadillac Mountain466Maine140.1
2.Isle au HautMount Champlain165Maine32.5
3.Staten IslandTodt Hill125New York22.7
4.Long IslandJaynes Hill116New York34.2
5.Martha's VineyardMarthas Vineyard High Point95Massachusetts48.0
6.Aquidneck IslandQuaker Hill85Rhode Island9.3
7.ManhattanManhattan High Point81New York5.8
8.Swans IslandGoose Pond Mountain73Maine16.8
9.Long Island [Frenchboro]Long Island High Point67Maine6.0
10.Great Spruce Head IslandThe Head67Maine13.0
11.Block IslandBeacon Hill64Rhode Island24.8
12.Bar Island [Machiasport]Bar Island High Point61Maine22.5
12.Jordan IslandJordan Island High Point61Maine6.7
12.Sebascodegan IslandReach Mountain61Maine8.0
12.Roque IslandRoque Benchmark61Maine33.4
12.Sears IslandSears Island High Point61Maine11.0
17.Butler IslandBig Mountain60Maine2.5
17.Conary IslandConary Island High Point60Maine13.2
17.Head Harbor IslandMoose-A-Bec Benchmark60Maine9.4
20.Cross IslandCross Island High Point59Maine6.8
21.Seward Neck IslandSeward Neck Island High Point59Maine5.8
22.Isleboro IslandKedears Hill58Maine5.6
23.Kimball IslandKimball Island High Point57Maine2.7
24.Prudence IslandPrudence Island High Point55Rhode Island5.1
24.Shelter IslandShelter Island Heights55New York12.9
24.Bald Porcupine IslandWheeler Benchmark55Maine3.3
27.Bois Bubert IslandBois Bubert Island High Point54Maine2.2
28.Hog Island [Essex Co.]Choate Benchmark54Massachusetts5.3
29.Naushon IslandMount Surat53Massachusetts13.9
30.Bar Island [Gouldsboro]Bar Island Summit53Maine2.3
31.Calderwood Neck IslandCalderwood Neck Island High Point52Maine5.1
31.Preble IslandPreble Island High Point52Maine6.7
31.Westport Island Westport Island High Point52Maine7.4
34.Barters IslandBarters Island High Point52Maine3.5
34.Deer IsleWhitmore Neck52Maine6.1
36.Monhegan IslandBlack Head50Maine26.1
36.Long Porcupine IslandLong Porcupine Island High Point50Maine2.0
38.Hurricane IslandHurricane Island High Point50Maine7.3
39.Bradbury IslandBradbury Island High Point49Maine3.4
40.Black IslandBlack Island High Point49Maine6.3
41.Pond IslandPond Island High Point48Maine3.4
42.Burnt IslandBurnt Island High Point48Maine10.5
43.Great Chebeague IslandGreat Chebeague Island High Point46Maine14.9
44.Nashawena IslandNashawena Island High Point46Massachusetts12.1
45.Arrowsic IslandArrowsic Island High Point46Maine7.0
45.Eagle Island [Hancock Co.]Eagle Island High Point46Maine2.6
45.North Haven IslandOak Hill46Maine6.4
45.Seguin IslandSeguin Island High Point46Maine11.9
45.Southport IslandSouthport Island High Point46Maine6.5

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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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