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

RankIslandPeak Elev-M
StateIsol-KmAscent Date
1.Mount Desert IslandCadillac Mountain466Maine140.1 
2.Martha's VineyardMarthas Vineyard High Point95Massachusetts48.0 
3.Long IslandJaynes Hill119New York34.2 
4.Roque IslandRoque Benchmark64Maine33.4 
5.Isle au HautMount Champlain166Maine32.5 
6.Monhegan IslandBlack Head50Maine26.1 
7.Block IslandBeacon Hill64Rhode Island24.8 
8.Staten IslandTodt Hill126New York22.7 
9.Bar Island [Machiasport]Bar Island High Point62Maine22.5 
10.Swans IslandGoose Pond Mountain73Maine16.8 
11.Great Chebeague IslandGreat Chebeague Island High Point46Maine14.9 
12.Naushon IslandMount Surat53Massachusetts13.9 
13.Conary IslandConary Island High Point60Maine13.2 
14.Great Spruce Head IslandThe Head69Maine13.0 
15.Shelter IslandShelter Island Heights56New York12.9 
16.Nashawena IslandNashawena Island High Point46Massachusetts12.1 
17.Seguin IslandSeguin Island High Point46Maine11.9 
18.Sears IslandSears Island High Point62Maine11.0 
19.Burnt IslandBurnt Island High Point48Maine10.5 
20.Head Harbor IslandMoose-A-Bec Benchmark60Maine9.4 
21.Aquidneck IslandQuaker Hill87Rhode Island9.3 
22.Sebascodegan IslandReach Mountain64Maine8.0 
23.Westport Island Westport Island High Point52Maine7.4 
24.Hurricane IslandHurricane Island High Point50Maine7.3 
25.Arrowsic IslandArrowsic Island High Point47Maine7.0 
26.Cross IslandCross Island High Point59Maine6.8 
27.Preble IslandPreble Island High Point52Maine6.7 
28.Jordan IslandJordan Island High Point64Maine6.7 
29.Southport IslandSouthport Island High Point47Maine6.5 
30.North Haven IslandOak Hill47Maine6.4 
31.Black IslandBlack Island High Point49Maine6.3 
32.Deer IsleWhitmore Neck53Maine6.1 
33.Long Island [Frenchboro]Long Island High Point67Maine6.0 
34.ManhattanManhattan High Point81New York5.8 
35.Seward Neck IslandSeward Neck Island High Point59Maine5.8 
36.Isleboro IslandKedears Hill59Maine5.6 
37.Hog Island [Essex Co.]Choate Benchmark54Massachusetts5.3 
38.Prudence IslandPrudence Island High Point56Rhode Island5.1 
39.Calderwood Neck IslandCalderwood Neck Island High Point52Maine5.1 
40.Barters IslandBarters Island High Point53Maine3.5 
41.Bradbury IslandBradbury Island High Point49Maine3.4 
42.Pond IslandPond Island High Point48Maine3.4 
43.Bald Porcupine IslandWheeler Benchmark58Maine3.3 
44.Kimball IslandKimball Island High Point57Maine2.7 
45.Eagle Island [Hancock Co.]Eagle Island High Point47Maine2.6 
46.Butler IslandBig Mountain60Maine2.5 
47.Bar Island [Gouldsboro]Bar Island Summit53Maine2.3 
48.Bois Bubert IslandBois Bubert Island High Point54Maine2.2 
49.Long Porcupine IslandLong Porcupine Island High Point50Maine2.0 

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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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